Cisco Catalyst 6500 up to 8.6 SIP memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability marked as problematic has been reported in Cisco Catalyst 6500 up to 8.6. This impacts an unknown function of the component SIP Handler. Performing a manipulation results in memory corruption. This vulnerability is known as CVE-2012-4660. No exploit is available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Cisco Catalyst 6500 up to 8.6. It has been classified as critical. This affects an unknown code of the component SIP Handler. The manipulation with an unknown input 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:

The SIP inspection engine on Cisco Adaptive Security Appliances (ASA) 5500 series devices, and the ASA Services Module (ASASM) in Cisco Catalyst 6500 series devices, with software 8.2 before 8.2(5.17), 8.3 before 8.3(2.28), 8.4 before 8.4(2.13), 8.5 before 8.5(1.4), and 8.6 before 8.6(1.5) allows remote attackers to cause a denial of service (device reload) via a crafted SIP media-update packet, aka Bug ID CSCtr63728.

The weakness was published 10/10/2012 with Cisco as cisco-sa-20121010-asa as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The vendor was not involved in the public release. This vulnerability is uniquely identified as CVE-2012-4660 since 08/24/2012. The exploitability is told to be easy. 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 62760 (Cisco ASA 5500 Series Multiple Vulnerabilities (cisco-sa-20121010-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 43254 (Cisco ASA 5500 Series Adaptive Security Appliances and Cisco Catalyst 6500 Series ASA Services Module Multiple Vulnerabilities (cisco-sa-20121010-asa)).

Upgrading to version 8.6(1.5) eliminates this vulnerability. The upgrade is hosted for download at tools.cisco.com. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at X-Force (79178), Tenable (62760), SecurityFocus (BID 55864†), OSVDB (86144†) and Secunia (SA50871†). Similar entries are available at VDB-6668, VDB-6676, VDB-6677 and VDB-6674. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

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CVSSv4info

VulDB Vector: 🔍
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CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 6.5

VulDB Base Score: 7.5
VulDB Temp Score: 6.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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Exploitinginfo

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

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

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Current Price Estimation: 🔍

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Nessus ID: 62760
Nessus Name: Cisco ASA 5500 Series Multiple Vulnerabilities (cisco-sa-20121010-asa)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

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

Upgrade: Catalyst 6500 8.6(1.5)

Timelineinfo

08/24/2012 🔍
10/10/2012 +47 days 🔍
10/10/2012 +0 days 🔍
10/10/2012 +0 days 🔍
10/10/2012 +0 days 🔍
10/10/2012 +0 days 🔍
10/11/2012 +1 days 🔍
10/11/2012 +0 days 🔍
10/15/2012 +4 days 🔍
10/29/2012 +14 days 🔍
04/18/2021 +3093 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20121010-asa
Organization: Cisco
Status: Confirmed

CVE: CVE-2012-4660 (🔍)
GCVE (CVE): GCVE-0-2012-4660
GCVE (VulDB): GCVE-100-6675
X-Force: 79178 - Cisco ASA 5500 Series Adaptive Security Appliances SIP denial of service, Medium Risk
SecurityFocus: 55864 - Cisco ASA 5500 Series and Cisco Catalyst 6500 Series CVE-2012-4660 Denial of Service Vulnerability
Secunia: 50871 - Cisco ASA Products Multiple Vulnerabilities, Moderately Critical
OSVDB: 86144
SecurityTracker: 1027641 - Cisco ASA Bugs Let Remote Users Deny Service and Execute Arbitrary Code
Vulnerability Center: 36458 - [cisco-sa-20121010-asa] Cisco ASA 8.2.x - 8.6.x Remote DoS Vulnerability via a Crafted SIP Packet, High

See also: 🔍

Entryinfo

Created: 10/15/2012 14:36
Updated: 04/18/2021 10:19
Changes: 10/15/2012 14:36 (81), 04/17/2017 19:57 (6), 04/18/2021 10:19 (3)
Complete: 🔍
Cache ID: 216::103

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