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.
Vulnerability Assessment Details
Check for the version of the gnupg package
Detailed Explanation for this Vulnerability Assessment
The remote host is missing the patch for the advisory FEDORA-2003-025 (gnupg).
GnuPG (GNU Privacy Guard) is a GNU utility for encrypting data and
creating digital signatures. GnuPG has advanced key management
capabilities and is compliant with the proposed OpenPGP Internet
standard described in RFC2440. Since GnuPG doesn't use any patented
algorithm, it is not compatible with any version of PGP2 (PGP2.x uses
only IDEA for symmetric-key encryption, which is patented worldwide).
Phong Nguyen identified a severe bug in the way GnuPG creates and
uses ElGamal keys, when those keys are used both to sign and encrypt
data. This vulnerability can be used to trivially recover the
private key. While the default behavior of GnuPG when generating
keys does not lead to the creation of unsafe keys, by overriding the
default settings an unsafe key could have been created.
If you are using ElGamal keys, you should revoke those keys
The packages included in this update do not make ElGamal keys safe to
they merely include a patch by David Shaw that disables
functions that would generate or use ElGamal keys for encryption.
Solution : http://www.fedoranews.org/updates/FEDORA-2003-025.shtml
Network Security Threat Level: High
Networks Security ID:
Vulnerability Assessment Copyright: This script is Copyright (C) 2004 Tenable Network Security
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