Cisco ASA up to 9.1(1.1) HTTP Deep Packet Inspection Malformed Response race condition

CVSS Meta Temp Score
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7.2$0-$5k0.00

A vulnerability has been found in Cisco ASA up to 9.1(1.1) (Firewall Software) and classified as critical. This vulnerability affects some unknown processing of the component HTTP Deep Packet Inspection. The manipulation as part of a Malformed Response leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect availability. CVE summarizes:

Race condition in the HTTP Deep Packet Inspection (DPI) feature in Cisco Adaptive Security Appliance (ASA) Software 8.2.x before 8.2(5.46), 8.3.x before 8.3(2.39), 8.4.x before 8.4(5.5), 8.5.x before 8.5(1.18), 8.6.x before 8.6(1.12), 8.7.x before 8.7(1.4), 9.0.x before 9.0(1.4), and 9.1.x before 9.1(1.2), in certain conditions involving the spoof-server option or ActiveX or Java response inspection, allows remote attackers to cause a denial of service (device reload) via a crafted HTTP response, aka Bug ID CSCud37992.

The weakness was published 10/09/2013 as cisco-sa-20131009-asa as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability was named CVE-2013-5512 since 08/22/2013. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 70474 (Cisco ASA Software Multiple Vulnerabilities (cisco-sa-20131009-asa)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO. The commercial vulnerability scanner Qualys is able to test this issue with plugin 43394 (Cisco ASA Multiple Vulnerabilities (cisco-sa-20131009-asa)).

Upgrading to version 8.2(5.46), 8.3(2.39), 8.4(5.5), 8.5(1.18), 8.6(1.12), 8.7(1.4), 9.0(1.4) or 9.1(1.2) eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (87777) and Tenable (70474). Additional details are provided at seclists.org. Similar entries are available at 10654, 10656, 10657 and 10658.

Productinfo

Type

Vendor

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Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.2

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Race condition
CWE: CWE-362
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 70474
Nessus Name: Cisco ASA Software Multiple Vulnerabilities (cisco-sa-20131009-asa)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: ASA 8.2(5.46)/8.3(2.39)/8.4(5.5)/8.5(1.18)/8.6(1.12)/8.7(1.4)/9.0(1.4)/9.1(1.2)

Timelineinfo

08/22/2013 🔍
10/09/2013 +48 days 🔍
10/09/2013 +0 days 🔍
10/09/2013 +0 days 🔍
10/10/2013 +1 days 🔍
10/13/2013 +3 days 🔍
10/13/2013 +0 days 🔍
10/14/2013 +1 days 🔍
05/26/2021 +2781 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20131009-asa
Status: Confirmed

CVE: CVE-2013-5512 (🔍)
IAVM: 🔍

X-Force: 87777
Vulnerability Center: 41862 - [cisco-sa-20131009-asa] Cisco ASA Remote Denial of Service due to an Error in the HTTP DPI Engine, High
Secunia: 55237 - Cisco Adaptive Security Appliance (ASA) Multiple Vulnerabilities, Moderately Critical
OSVDB: 98261

Misc.: 🔍
See also: 🔍

Entryinfo

Created: 10/14/2013 16:56
Updated: 05/26/2021 15:28
Changes: 10/14/2013 16:56 (76), 05/13/2017 09:44 (1), 05/26/2021 15:28 (3)
Complete: 🔍

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