Cisco TelePresence Video Communication Server X8.5.1/X8.5.2 input validation

CVSS Meta Temp Score
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CTI Interest Score
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5.7$0-$5k0.00

Summaryinfo

A vulnerability described as problematic has been identified in Cisco TelePresence Video Communication Server X8.5.1/X8.5.2. This vulnerability affects unknown code. Such manipulation leads to input validation. This vulnerability is documented as CVE-2015-6318. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cisco TelePresence Video Communication Server X8.5.1/X8.5.2 (Unified Communication Software). Affected by this issue is an unknown code block. 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 X8.5.1 and X8.5.2 allows local users to write to arbitrary files via an unspecified symlink attack, aka Bug ID CSCuv11969.

The weakness was released 10/12/2015 with Cisco as CSCuv11969 as confirmed advisory (Website). The advisory is shared for download at tools.cisco.com. This vulnerability is handled as CVE-2015-6318 since 08/17/2015. The attack needs to be approached locally. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 86544 (Cisco TelePresence VCS Expressway 8.5.1 / 8.5.2 request-xconfdump Symbolic Link Local File Manipulation (cisco-sa-20141007-vcs)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family CISCO and running in the context r.

Upgrading eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (86544), SecurityFocus (BID 77056†) and Vulnerability Center (SBV-54392†). Once again VulDB remains the best source for vulnerability data.

Productinfo

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Vendor

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.7

VulDB Base Score: 5.9
VulDB Temp Score: 5.7
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 86544
Nessus Name: Cisco TelePresence VCS Expressway 8.5.1 / 8.5.2 request-xconfdump Symbolic Link Local File Manipulation (cisco-sa-20141007-vcs)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

OpenVAS ID: 803167
OpenVAS Name: Cisco TelePresence Video Communication Server Expressway File Modification Vulnerability
OpenVAS File: 🔍
OpenVAS Family: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/17/2015 🔍
10/07/2015 +51 days 🔍
10/07/2015 +0 days 🔍
10/07/2015 +0 days 🔍
10/12/2015 +5 days 🔍
10/12/2015 +0 days 🔍
10/13/2015 +1 days 🔍
10/22/2015 +9 days 🔍
11/15/2015 +24 days 🔍
06/20/2022 +2409 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: CSCuv11969
Organization: Cisco
Status: Confirmed

CVE: CVE-2015-6318 (🔍)
GCVE (CVE): GCVE-0-2015-6318
GCVE (VulDB): GCVE-100-78356
SecurityFocus: 77056 - Cisco TelePresence Video Communication Server Expressway Local Security Bypass Vulnerability
SecurityTracker: 1033781
Vulnerability Center: 54392 - [cisco-sa-20151007-vcs] Cisco TelePresence Video Communication Server (VCS) X8.5.2 Local File System Write, Medium

Entryinfo

Created: 10/13/2015 10:13
Updated: 06/20/2022 15:48
Changes: 10/13/2015 10:13 (56), 04/12/2018 17:09 (16), 06/20/2022 15:48 (3)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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