Cisco Unified Callmanager up to 5.x 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 (≈)
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CTI Interest Score
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7.2$0-$5k0.00

A vulnerability, which was classified as critical, was found in Cisco Unified Callmanager up to 5.x. This affects some unknown functionality. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. The summary by CVE is:

Cisco Unified Communications Manager (aka CUCM, formerly CallManager) 5.x before 5.1(3g), 6.x before 6.1(4), 7.0.x before 7.0(2a)su1, and 7.1.x before 7.1(2) allows remote attackers to cause a denial of service (service restart) via malformed SIP messages, aka Bug ID CSCsz95423.

The weakness was released 09/23/2009 with Cisco as 18883 as confirmed vulnerability alert (Website). The advisory is shared at tools.cisco.com. This vulnerability is uniquely identified as CVE-2009-2864. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Neither technical details nor an exploit are publicly available.

Upgrading to version 5.0%283%29 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (53447).

Productinfo

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

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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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unified Callmanager 5.0%283%29

Timelineinfo

08/19/2009 🔍
09/23/2009 +35 days 🔍
09/23/2009 +0 days 🔍
09/23/2009 +0 days 🔍
09/24/2009 +1 days 🔍
09/28/2009 +3 days 🔍
10/07/2009 +9 days 🔍
03/18/2015 +1988 days 🔍
08/23/2021 +2350 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: 18883
Organization: Cisco
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2009-2864 (🔍)
X-Force: 53447
Vulnerability Center: 23636 - [cisco-sa-20090923-cm] CUCM Voice Services Interruption Remote DoS Vulnerability, High
SecurityFocus: 36496 - Cisco Unified Communications Manager SIP Message Denial of Service Vulnerability
OSVDB: 58344 - Cisco Unified Communications Manager Malformed SIP Packet Processing Remote DoS

Entryinfo

Created: 03/18/2015 15:15
Updated: 08/23/2021 09:06
Changes: 03/18/2015 15:15 (54), 02/15/2017 09:27 (9), 08/23/2021 09:06 (4)
Complete: 🔍

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