Cisco Unified Communications Manager up to 6.0 Certificate Authority Proxy Function proxy input validation

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.
6.7	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in Cisco Unified Communications Manager up to 6.0 (Unified Communication Software). This issue affects the function proxy of the component Certificate Authority Proxy Function. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is availability. The summary by CVE is:

The Certificate Authority Proxy Function (CAPF) service in Cisco Unified Communications Manager (CUCM) 4.1 before 4.1(3)SR7, 4.2 before 4.2(3)SR4, and 4.3 before 4.3(2) allows remote attackers to cause a denial of service (service crash) via malformed network traffic, aka Bug ID CSCsk46770.

The bug was discovered 05/14/2008. The weakness was released 05/16/2008 (Website). The advisory is shared at xforce.iss.net. The identification of this vulnerability is CVE-2008-1744 since 04/11/2008. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available.

It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version 6.1 1a eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at X-Force (42415). Entries connected to this vulnerability are available at 42405, 42404, 42403 and 42402.

Productinfo

Type

Unified Communication Software

Vendor

Cisco

Name

Unified Communications Manager

Version

License

commercial

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: 6.7

VulDB Base Score: 7.5
VulDB Temp Score: 6.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Unified Communications Manager 6.1 1a

Timelineinfo

04/11/2008 🔍
05/14/2008 +33 days 🔍
05/14/2008 +0 days 🔍
05/14/2008 +0 days 🔍
05/14/2008 +0 days 🔍
05/16/2008 +2 days 🔍
05/16/2008 +0 days 🔍
05/19/2008 +3 days 🔍
03/16/2015 +2492 days 🔍
08/10/2019 +1608 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: xforce.iss.net
Status: Confirmed

CVE: CVE-2008-1744 (🔍)
X-Force: 42415
SecurityTracker: 1020022
Vulnerability Center: 18418 - [cisco-sa-20080514-cucmdos] Cisco CAPF DoS By Malformed Network Ttraffic (Bug ID CSCsk46770), Medium
SecurityFocus: 29221 - Cisco Unified Communications Manager Multiple Denial of Service Vulnerabilities
Secunia: 30238
OSVDB: 45207 - CVE-2008-1744 - Cisco - Unified Communications Manager - Denial-Of-Service Issue
Vupen: ADV-2008-1533

See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/10/2019 12:57
Changes: 03/16/2015 17:00 (62), 08/10/2019 12:57 (10)
Complete: 🔍