Cisco Appliance up to 9.1(2.4) LDAP Packet Parser override-account-disable improper authentication

CVSS Meta Temp Score
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6.2$0-$5k0.00

A vulnerability was found in Cisco Appliance up to 9.1(2.4). It has been declared as critical. Affected by this vulnerability is some unknown functionality of the component LDAP Packet Parser. The manipulation of the argument override-account-disable with an unknown input leads to a improper authentication vulnerability. The CWE definition for the vulnerability is CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. As an impact it is known to affect confidentiality, and integrity. The summary by CVE is:

The remote-access VPN implementation in Cisco Adaptive Security Appliance (ASA) Software 7.x before 7.2(5.12), 8.x before 8.2(5.46), 8.3.x before 8.3(2.39), 8.4.x before 8.4(6), 8.6.x before 8.6(1.12), 9.0.x before 9.0(3.1), and 9.1.x before 9.1(2.5), when an override-account-disable option is enabled, does not properly parse AAA LDAP responses, which allows remote attackers to bypass authentication via a VPN connection attempt, aka Bug ID CSCug83401.
The advisory summarizes:
Only traffic directed to the affected system can be used to exploit this vulnerability. This vulnerability affects Cisco ASA Software configured only in routed firewall mode in only single context mode.

The weakness was presented 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 known as CVE-2013-5510 since 08/22/2013. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit.

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 9.1(2.8) 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 (87775) and Tenable (70474). See 10654, 10656, 10657 and 10658 for similar entries.

Productinfo

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Version

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Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
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Exploitinginfo

Class: Improper authentication
CWE: CWE-287
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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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: Appliance 9.1(2.8)

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 🔍
10/15/2013 +2 days 🔍
05/26/2021 +2780 days 🔍

Sourcesinfo

Vendor: cisco.com

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

CVE: CVE-2013-5510 (🔍)
IAVM: 🔍

X-Force: 87775
Vulnerability Center: 41860 - [cisco-sa-20131009-asa] Cisco ASA Remote Leakage of Information due to Improper Parsing of LDAP Response Packets (CVE-2013-5510), Medium
Secunia: 55237 - Cisco Adaptive Security Appliance (ASA) Multiple Vulnerabilities, Moderately Critical
OSVDB: 98264

See also: 🔍

Entryinfo

Created: 10/15/2013 09:39
Updated: 05/26/2021 15:47
Changes: 10/15/2013 09:39 (75), 05/13/2017 09:44 (1), 05/26/2021 15:47 (3)
Complete: 🔍
Committer: olku

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