Cisco IOS up to 12.2srb denial of service

CVSS Meta Temp Score
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CTI Interest Score
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7.5$0-$5k0.00

A vulnerability has been found in Cisco IOS up to 12.2srb (Router Operating System) and classified as critical. Affected by this vulnerability is some unknown processing. 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:

Cisco IOS 12.2 through 12.4 and 15.0 through 15.1, Cisco IOS XE 2.5.x and 2.6.x before 2.6.1, and Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 6.x before 6.1(5), 7.0 before 7.0(2a)su3, 7.1su before 7.1(3b)su2, 7.1 before 7.1(5), and 8.0 before 8.0(1) allow remote attackers to cause a denial of service (device reload or voice-services outage) via a SIP REFER request with an invalid Refer-To header, aka Bug IDs CSCta20040 and CSCta31358.

The weakness was presented 09/23/2010 (Website). It is possible to read the advisory at cisco.com. This vulnerability is known as CVE-2010-2835. 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 pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 09/25/2021).

The vulnerability scanner Nessus provides a plugin with the ID 49648 (Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20100922-sip)), 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 43192 (Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20100922-sip)).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Tenable (49648) and Vulnerability Center (SBV-27281†).

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: 7.5

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

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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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: 🔍

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Nessus ID: 49648
Nessus Name: Cisco IOS Software Session Initiation Protocol Denial of Service Vulnerabilities (cisco-sa-20100922-sip)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/23/2010 🔍
09/23/2010 +62 days 🔍
09/23/2010 +0 days 🔍
09/23/2010 +0 days 🔍
09/26/2010 +3 days 🔍
03/19/2015 +1635 days 🔍
09/25/2021 +2382 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco.com
Status: Not defined

CVE: CVE-2010-2835 (🔍)
SecurityFocus: 36152
Vulnerability Center: 27281 - [cisco-sa-20100922-sip] Cisco IOS and CUCM Remote DoS via a Crafted SIP REFER Request, High

Entryinfo

Created: 03/19/2015 02:37 PM
Updated: 09/25/2021 01:18 PM
Changes: 03/19/2015 02:37 PM (52), 03/06/2017 11:05 AM (6), 09/25/2021 01:13 PM (3), 09/25/2021 01:18 PM (2)
Complete: 🔍
Cache ID: 35:101:40

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