Overview
This report provides details on a significant vulnerability in the Ericsson Packet Core Controller (PCC). The vulnerability, assigned CVE-2024-53827, could allow an attacker to cause service degradation by sending a large volume of specially crafted messages. It is particularly concerning due to the potential for system compromise or data leakage, and hence demands immediate attention from all entities employing the affected Ericsson PCC system.
Vulnerability Summary
CVE ID: CVE-2024-53827
Severity: High, CVSS score 7.5
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Service Degradation, Potential System Compromise, Data Leakage
Affected Products
Share secrets securely
Ameeba is private infrastructure for communication and sensitive work built on encrypted identity instead of exposed corporate identity systems.
Passwords, credentials, confidential files, screenshots, internal discussions, sensitive AI context, and private coordination should not become exposed across ordinary communication platforms.
- • Encrypted identity
- • Private Spaces for organizations and teams
- • End-to-end encrypted chat, calls, files, and notes
- • Sensitive AI work and protected collaboration
- • Built for information that cannot leak
Our mission is to secure human work alongside AI.
Product | Affected Versions
Ericsson Packet Core Controller (PCC) | All versions prior to the latest patch
How the Exploit Works
An attacker exploits this vulnerability by sending a large volume of specially crafted messages to a target system running the vulnerable versions of Ericsson PCC. These messages can cause high resource consumption on the target system, leading to service degradation. If successfully exploited, this vulnerability could lead to system compromise and potential data leakage.
Conceptual Example Code
Here’s a conceptual example of how the vulnerability might be exploited. This pseudocode represents the sending of a large volume of crafted messages to the target.
for i in range(1,1000000):
POST /target_endpoint HTTP/1.1
Host: target.example.com
Content-Type: application/json
{ "message": "specially_crafted_message_" + str(i) }
Mitigation Guidance
Until a patch is released by the vendor, it is recommended to use a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. These systems can be configured to identify and block the large volume of crafted messages associated with this exploit. Once the vendor patch is available, it should be applied immediately to all affected systems to remediate this vulnerability.
