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CVE-2013-5568: Cisco ASA auto-update can be forced to restart

CVE-2013-5568 · published 12 years ago

Summary

Cisco Adaptive Security Appliance (ASA) software versions up to 9.0.3.6 can be made to reload unexpectedly if an attacker sends specially crafted update data. This can cause temporary loss of network protection and connectivity. Apply the latest software update or disable the automatic update feature to prevent the issue.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software

Vendor	Product	Affected versions
cisco	adaptive_security_appliance_software	<= 9.0.3\(6\) 7.0 7.0\(0\) 7.0\(1\) 7.0\(2\) 7.0\(4\) 7.0\(5\) 7.0\(5.2\) 7.0\(6\) 7.0\(6.7\) 7.0\(7\) 7.0\(8\) 99 more version ranges `cpe:2.3:a:cisco:adaptive_security_appliance_software::::::::`

Original advisory text

The auto-update implementation in Cisco Adaptive Security Appliance (ASA) Software 9.0.3.6 and earlier allows remote attackers to cause a denial of service (device reload) via crafted update data, ...

References

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5568 Vendor Advisory
http://tools.cisco.com/security/center/viewAlert.x?alertId=31693 Vendor Advisory

Fix within

Internet-facing 60 days

Internal At next upgrade

Not known to be exploited
Needs hands-on effort to exploit (estimated)
Gives an attacker partial control (estimated)

Severity

7.1 High

Exploitation

1% chance of attack within 30 days

Type

CWE-20Improper Input Validation

Timeline

Published13 Nov 2013

Updated4 Nov 2026

First seen29 Sep 2026

Sources

CVE-2013-5568 · NVD

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