Tenable SecurityCenter OpenSSL ASN.1 Signature Verification Routine DoS (TNS-2016-01)

This script is Copyright (C) 2016-2017 Tenable Network Security, Inc.


Synopsis :

The remote application is affected by a denial of service
vulnerability.

Description :

The SecurityCenter application installed on the remote host is
affected by a denial of service vulnerability in the bundled OpenSSL
library. The library is version 1.0.1 or later but prior to 1.0.1q.
It is, therefore, affected by a NULL pointer dereference flaw in file
rsa_ameth.c due to improper handling of ASN.1 signatures that are
missing the PSS parameter. A remote attacker can exploit this to cause
the signature verification routine to crash, resulting in a denial of
service condition.

See also :

http://www.tenable.com/security/tns-2016-01
https://static.tenable.com/prod_docs/upgrade_security_center.html
https://support.tenable.com/support-center/index.php?x=&mod_id=160
https://www.openssl.org/news/secadv/20151203.txt

Solution :

Upgrade to Tenable SecurityCenter version 5.2.0. Alternatively, apply
the relevant patch referenced in the vendor advisory.

Risk factor :

Medium / CVSS Base Score : 5.0
(CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P)
CVSS Temporal Score : 3.7
(CVSS2#E:U/RL:OF/RC:C)
Public Exploit Available : false

Family: Misc.

Nessus Plugin ID: 88809 ()

Bugtraq ID: 78623

CVE ID: CVE-2015-3194

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