VDB-133794 · CVE-2019-1720 · BID 108002

Cisco Expressway/TelePresence Video Communication Server XML API input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Cisco Expressway and TelePresence Video Communication Server up to X12.5.0. Affected by this issue is some unknown functionality of the component XML API. The manipulation results in input validation. This vulnerability is cataloged as CVE-2019-1720. The attack may be launched remotely. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in Cisco Expressway and TelePresence Video Communication Server up to X12.5.0 (Unified Communication Software). Affected is an unknown part of the component XML API. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability. CVE summarizes:

A vulnerability in the XML API of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to cause the CPU to increase to 100% utilization, causing a denial of service (DoS) condition on an affected system. The vulnerability is due to improper handling of the XML input. An attacker could exploit this vulnerability by sending a specifically crafted XML payload. A successful exploit could allow the attacker to exhaust CPU resources, resulting in a DoS condition until the system is manually rebooted. Software versions prior to X12.5.1 are affected.

The bug was discovered 04/17/2019. The weakness was shared 04/18/2019 as cisco-sa-20190417-ces-tvcs-dos as confirmed advisory (Website). The advisory is available at tools.cisco.com. This vulnerability is traded as CVE-2019-1720 since 12/06/2018. It is possible to launch the attack remotely. A authentication is necessary for exploitation. The technical details are unknown and an exploit is not available.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.

Upgrading to version X12.5.1 eliminates this vulnerability.

The entries VDB-133796 and VDB-133795 are related to this item. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.9
NVD Vector: 🔍

CNA Base Score: 6.8
CNA Vector (Cisco Systems, Inc.): 🔍

CVSSv2info

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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: No
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: Expressway/TelePresence Video Communication Server X12.5.1

Timelineinfo

12/06/2018 🔍
04/17/2019 +132 days 🔍
04/18/2019 +1 days 🔍
04/18/2019 +0 days 🔍
09/04/2023 +1600 days 🔍

Sourcesinfo

Vendor: cisco.com

Advisory: cisco-sa-20190417-ces-tvcs-dos
Status: Confirmed

CVE: CVE-2019-1720 (🔍)
GCVE (CVE): GCVE-0-2019-1720
GCVE (VulDB): GCVE-100-133794
SecurityFocus: 108002

See also: 🔍

Entryinfo

Created: 04/18/2019 20:16
Updated: 09/04/2023 13:09
Changes: 04/18/2019 20:16 (61), 05/30/2020 15:19 (1), 09/04/2023 13:02 (4), 09/04/2023 13:09 (12)
Complete: 🔍
Cache ID: 216::103

If you want to get best quality of vulnerability data, you may have to visit VulDB.

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