Cisco ASA up to 9.1(1.7) DNS Application Layer Protocol Inspection Engine Unsupported Packet memory corruption

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

Summaryinfo

A vulnerability was found in Cisco ASA up to 9.1(1.7). It has been classified as problematic. Affected by this vulnerability is an unknown functionality of the component DNS Application Layer Protocol Inspection Engine. Performing a manipulation as part of Unsupported Packet results in memory corruption. This vulnerability is cataloged as CVE-2013-5513. There is no exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as critical, was found in Cisco ASA up to 9.1(1.7) (Firewall Software). This affects an unknown code block of the component DNS Application Layer Protocol Inspection Engine. The manipulation as part of a Unsupported Packet leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on availability. The summary by CVE is:

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(7), 8.5.x before 8.5(1.18), 8.6.x before 8.6(1.12), 8.7.x before 8.7(1.7), 9.0.x before 9.0(3.3), and 9.1.x before 9.1(1.8), when the DNS ALPI engine is enabled for TCP, allows remote attackers to cause a denial of service (device reload) via crafted TCP DNS packets, aka Bug ID CSCug03975.

The weakness was shared 10/09/2013 as cisco-sa-20131009-asa as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. This vulnerability is uniquely identified as CVE-2013-5513 since 08/22/2013. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not 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(7), 8.5(1.18), 8.6(1.12), 8.7(1.7), 9.0(3.3) or 9.1(1.8) 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 (87778), Tenable (70474), OSVDB (98260†), Secunia (SA55237†) and Vulnerability Center (SBV-41863†). The entries VDB-10654, VDB-10656, VDB-10657 and VDB-10658 are related to this item. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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CPE 2.3info

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CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

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: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
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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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: ASA 8.2(5.46)/8.3(2.39)/8.4(7)/8.5(1.18)/8.6(1.12)/8.7(1.7)/9.0(3.3)/9.1(1.8)

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-2013-5513 (🔍)
GCVE (CVE): GCVE-0-2013-5513
GCVE (VulDB): GCVE-100-10659

IAVM: 🔍

X-Force: 87778
Secunia: 55237 - Cisco Adaptive Security Appliance (ASA) Multiple Vulnerabilities, Moderately Critical
OSVDB: 98260
Vulnerability Center: 41863 - [cisco-sa-20131009-asa] Cisco ASA Remote Denial of Service via Maliciously Crafted DNS over TCP Packets (CVE-2013-5513), High

See also: 🔍

Entryinfo

Created: 10/14/2013 16:54
Updated: 05/26/2021 15:22
Changes: 10/14/2013 16:54 (75), 05/13/2017 09:44 (1), 05/26/2021 15:22 (3)
Complete: 🔍
Cache ID: 216::103

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