SSL Certificate Signed Using Weak Hashing Algorithm

Medium Nessus Network Monitor Plugin ID 4803

Synopsis

The SSL certificate has been signed using a weak hash algorithm - MD5

Description

The remote service uses an SSL certificate that has been signed using a cryptographically weak hashing algorithm - MD5. These algorithms are known to be vulnerable to collision attacks. In theory, a determined attacker may be able to leverage this weakness to generate another certificate with the same digital signature, which could allow him to masquerade as the affected service.

Solution

Contact the Certificate Authority to have the certificate reissued.

See Also

http://www.phreedom.org/research/rogue-ca

http://www.microsoft.com/technet/security/advisory/961509.mspx

http://www.kb.cert.org/vuls/id/836068

http://tools.ietf.org/html/rfc3279

Plugin Details

Severity: Medium

ID: 4803

File Name: 4803.prm

Family: Generic

Published: 2009/01/06

Modified: 2016/01/21

Dependencies: 5620

Nessus ID: 35291

Risk Information

Risk Factor: Medium

CVSSv2

Base Score: 5

Temporal Score: 4.1

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Temporal Vector: CVSS2#E:F/RL:OF/RC:C

CVSSv3

Base Score: 5.3

Temporal Score: 4.9

Vector: CVSS3#AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Temporal Vector: CVSS3#E:F/RL:O/RC:C

Reference Information

CVE: CVE-2004-2761

BID: 11849, 33065