Security restrictions bypass in Cisco Email Security Appliance - CVE-2016-6357

Vulnerability identifier: #VU1086

CSH Severity: Low

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]

CVE-ID: CVE-2016-6357

CWE-ID: CWE-388

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote unauthenticated user to bypass security restrictions on the target system.
The weakness exists due to improper error handling. By sending an email message with a specially crafted attachment, a remote attacker can bypass the configured drop filter.
Successful exploitation of the vulnerability allows a malicious user to gain access to the vulnerable system.

Cisco Email Security Appliance
SUSE Linux Enterprise Micro
ipset-debuginfo
ipset
libipset13-debuginfo
libipset13
ipset-debugsource

Install update from vendor's website.

ipset-debuginfo - update to 7.15-150400.12.6.4
ipset - update to 7.15-150400.12.6.4
libipset13-debuginfo - update to 7.15-150400.12.6.4
libipset13 - update to 7.15-150400.12.6.4
ipset-debugsource - update to 7.15-150400.12.6.4

• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161026-esa5

• Security restrictions bypass in Cisco Email Security Appliance
• SUSE update for Recommended update for ipset