FrSIRT - IPsec Tools "isakmp_info_recv()" Packets Handling Denial of Service Vulnerability / Exploit (Security Advisories)

French Security Incident Response Team

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IPsec Tools "isakmp_info_recv()" Packets Handling Denial of Service Vulnerability

Title : IPsec Tools "isakmp_info_recv()" Packets Handling Denial of Service Vulnerability
Advisory ID : FrSIRT/ADV-2007-1310
CVE ID : CVE-2007-1841
Rated as : Moderate Risk

Remotely Exploitable : Yes
Locally Exploitable : Yes
Release Date : 2007-04-10

Advisory Details

Description

Affected Products

Solution

References

Technical Description

A vulnerability has been identified in IPsec-tools, which could be exploited by attackers to cause a denial of service. This issue is caused by an error in the IPSec key exchange server "racoon" that fails to properly validate certain requests via the "isakmp_info_recv()" [src/racoon/isakmp_inf.c] function, which could be exploited by attackers to disrupt established IPSec tunnels and create a denial of service condition by sending specially crafted packets.

Credits

Vulnerability reported by the vendor

ChangeLog

2007-04-10 : Initial release

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