Vulnerability Assessment & Network Security Forums

If through a vulnerability assessment, a network security issue is detected for the vulnerability below, applying the appropriate security patches in a timely matter is very important. If you have detected that your system has already been compromised, following CERT's Network Security recovery document will assist with recommended steps for system recovery.

Home >> Browse Vulnerability Assessment Database >> Gentoo Local Security Checks >> [GLSA-200510-11] OpenSSL: SSL 2.0 protocol rollback

Vulnerability Assessment Details

[GLSA-200510-11] OpenSSL: SSL 2.0 protocol rollback

Vulnerability Assessment Summary
OpenSSL: SSL 2.0 protocol rollback

Detailed Explanation for this Vulnerability Assessment
The remote host is affected by the vulnerability described in GLSA-200510-11
(OpenSSL: SSL 2.0 protocol rollback)

Applications setting the SSL_OP_MSIE_SSLV2_RSA_PADDING option (or
the SSL_OP_ALL option, that implies it) can be forced by a third-party
to fallback to the less secure SSL 2.0 protocol, even if both parties
support the more secure SSL 3.0 or TLS 1.0 protocols.

Impact

A man-in-the-middle attacker can weaken the encryption used to
communicate between two parties, potentially revealing sensitive
information.

Workaround

If possible, disable the use of SSL 2.0 in all OpenSSL-enabled
applications.

References:
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-2969
http://www.openssl.org/news/secadv_20051011.txt

Solution:
All OpenSSL users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose dev-libs/openssl

Network Security Threat Level: Low

Networks Security ID:

Vulnerability Assessment Copyright: (C) 2005 Michel Arboi

Cables, Connectors