A weakness has been identified in Balsa, which could be exploited by remote attackers to gain knowledge of sensitive information. This issue is caused by an error in the APOP protocol that fails to properly prevent MD5 collisions, which could be exploited via man-in-the-middle attacks and specially crafted message-IDs to potentially disclose the first three characters of passwords.
Credits
Vulnerability reported by Gaëtan LEURENT.
ChangeLog
2007-08-07 : Initial release
Vulnerability Management
Subscribe to FrSIRT VNS and receive real-time e-mail and SMS alerts when new vulnerabilities, exploits, or patches relevant to your systems and network configurations are available.
Feedback
If you have additional information or corrections for this security advisory please submit them via our contact form or by email to updates@frsirt.com.
French
