VDB-136037 · CVE-2019-1872 · BID 108677

Cisco TelePresence Video Communication Server server-side request forgery

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.
6.0	$5k-$25k	0.00

A vulnerability, which was classified as critical, has been found in Cisco TelePresence Video Communication Server and Expressway Series (Unified Communication Software) (version now known). This issue affects some unknown processing. The manipulation with an unknown input leads to a server-side request forgery vulnerability. Using CWE to declare the problem leads to CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A vulnerability in Cisco TelePresence Video Communication Server (VCS) and Cisco Expressway Series software could allow an unauthenticated, remote attacker to cause an affected system to send arbitrary network requests. The vulnerability is due to improper restrictions on network services in the affected software. An attacker could exploit this vulnerability by sending malicious requests to the affected system. A successful exploit could allow the attacker to send arbitrary network requests sourced from the affected system.

The weakness was disclosed 06/05/2019 as cisco-sa-20190605-vcs as confirmed advisory (Website). The advisory is shared at tools.cisco.com. The identification of this vulnerability is CVE-2019-1872 since 12/06/2018. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 09/28/2023).

The commercial vulnerability scanner Qualys is able to test this issue with plugin 38769 (Cisco TelePresence Video Communication Server and Cisco Expressway Series Server-Side Request Forgery Vulnerability(cisco-sa-20190605-vcs)).

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

Productinfo

Type

Unified Communication Software

Vendor

Cisco

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.0
VulDB Meta Temp Score: 6.0

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Cisco Systems, Inc.): 🔍

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: Server-side request forgery
CWE: CWE-918
CAPEC: 🔍
ATT&CK: 🔍

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

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

12/06/2018 🔍
06/05/2019 +181 days 🔍
06/06/2019 +1 days 🔍
09/28/2023 +1575 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190605-vcs
Status: Confirmed

CVE: CVE-2019-1872 (🔍)
SecurityFocus: 108677

Entryinfo

Created: 06/06/2019 08:40 AM
Updated: 09/28/2023 09:49 AM
Changes: 06/06/2019 08:40 AM (37), 06/19/2020 10:08 PM (20), 09/28/2023 09:45 AM (3), 09/28/2023 09:49 AM (12)
Complete: 🔍
Cache ID: 18:13D:40