Cisco ASA prior 8.0 SIP Inspection Feature denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2$0-$5k0.00

A vulnerability has been found in Cisco ASA (Firewall Software) and classified as critical. Affected by this vulnerability is an unknown code block of the component SIP Inspection Feature. The manipulation with an unknown input leads to a denial of service vulnerability. The CWE definition for the vulnerability is CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. As an impact it is known to affect availability. The summary by CVE is:

Unspecified vulnerability in the SIP inspection feature on Cisco Adaptive Security Appliances (ASA) 5500 series devices with software 8.0 before 8.0(5.17), 8.1 before 8.1(2.45), and 8.2 before 8.2(2.13) allows remote attackers to cause a denial of service (device reload) via crafted SIP packets, aka Bug ID CSCtd32106.

The weakness was presented 08/09/2010 with Cisco (Website). It is possible to read the advisory at cisco.com. This vulnerability is known as CVE-2010-2816. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 56045 (Cisco ASA 5500 Series Multiple DoS Vulnerabilities (cisco-sa-20100804-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 43203 (Cisco ASA 5500 Series Adaptive Security Appliances Multiple Vulnerabilities (cisco-sa-20100804-asa)).

Upgrading to version 8.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (56045), SecurityFocus (BID 42189†) and Vulnerability Center (SBV-26685†).

Productinfo

Type

Vendor

Name

Version

License

Support

  • end of life (old version)

CPE 2.3info

CPE 2.2info

CVSSv4info

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

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock
unlockunlockunlockunlockunlockunlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Dayunlockunlockunlockunlock
Todayunlockunlockunlockunlock

Nessus ID: 56045
Nessus Name: Cisco ASA 5500 Series Multiple DoS Vulnerabilities (cisco-sa-20100804-asa)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: ASA 8.0

Timelineinfo

07/23/2010 🔍
08/04/2010 +12 days 🔍
08/04/2010 +0 days 🔍
08/05/2010 +1 days 🔍
08/09/2010 +4 days 🔍
08/09/2010 +0 days 🔍
03/19/2015 +1683 days 🔍
09/21/2021 +2378 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Organization: Cisco
Status: Not defined

CVE: CVE-2010-2816 (🔍)
SecurityFocus: 42189 - Cisco ASA 5500 Series SIP Inspection (CVE-2010-2816) Denial of Service Vulnerability
Secunia: 40842
Vulnerability Center: 26685 - [cisco-sa-20100804-asa] Cisco ASA 5500 SIP Transit Traffic Denial of Service Vulnerability, High

Entryinfo

Created: 03/19/2015 02:37 PM
Updated: 09/21/2021 11:49 PM
Changes: 03/19/2015 02:37 PM (56), 03/02/2017 10:58 AM (9), 09/21/2021 11:36 PM (4), 09/21/2021 11:49 PM (1)
Complete: 🔍
Cache ID: 35:9FF:40

Discussion

No comments yet. Languages: en.

Please log in to comment.

Want to stay up to date on a daily basis?

Enable the mail alert feature now!