Cisco TelePresence Video Communication Server X8.5.2 HTTP Request 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.
6.3	$5k-$25k	0.00

A vulnerability was found in Cisco TelePresence Video Communication Server X8.5.2 (Unified Communication Software) and classified as critical. Affected by this issue is some unknown processing of the component HTTP Request Handler. 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 confidentiality, integrity, and availability. CVE summarizes:

Cisco TelePresence Video Communication Server (VCS) Expressway X8.5.2 improperly checks for a user account's read-only attribute, which allows remote authenticated users to execute arbitrary OS commands via crafted HTTP requests, as demonstrated by read or write operations on the Unified Communications lookup page, aka Bug ID CSCuv12552.

The weakness was disclosed 08/20/2015 as CSCuv12552 as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is handled as CVE-2015-4328 since 06/04/2015. The attack may be launched remotely. Required for exploitation is a simple authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 06/12/2022).

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

The entries 77341, 77340, 77339 and 77338 are pretty similar.

Productinfo

Type

Unified Communication Software

Vendor

Cisco

Name

TelePresence Video Communication Server

Version

X8.5.2

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: 6.3
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

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
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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: no mitigation known
Status: 🔍

Timelineinfo

06/04/2015 🔍
08/18/2015 +75 days 🔍
08/19/2015 +1 days 🔍
08/20/2015 +1 days 🔍
08/20/2015 +0 days 🔍
10/15/2015 +56 days 🔍
06/12/2022 +2432 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuv12552
Status: Confirmed

CVE: CVE-2015-4328 (🔍)
SecurityTracker: 1033329
Vulnerability Center: 53506 - Cisco TelePresence Video Communication Server (VCS) Remote Security Bypass in Web Framework, Medium
SecurityFocus: 76399

See also: 🔍

Entryinfo

Created: 08/20/2015 10:45
Updated: 06/12/2022 18:12
Changes: 08/20/2015 10:45 (56), 02/13/2018 07:42 (1), 06/12/2022 18:12 (3)
Complete: 🔍