Cisco Expressway Series and TelePresence Video Communication Server Remote Code Execution Vulnerability (Cisco Cisco TelePresence Video Communication Server (VCS) Expressway)

CVE-2021-34716
MEDIUM 6.7

At a glance

Source
NVD
EPSS
EPSS 2.40 % · percentile 84 ()
State
PUBLISHED
Published
Updated
Assigner
cisco
NVD status
Modified

Description

A vulnerability in the web-based management interface of Cisco Expressway Series and Cisco TelePresence Video Communication Server (VCS) could allow an authenticated, remote attacker to execute arbitrary code on the underlying operating system as the root user. This vulnerability is due to incorrect handling of certain crafted software images that are uploaded to the affected device. An attacker could exploit this vulnerability by authenticating to the system as an administrative user and then uploading specific crafted software images to the affected device. A successful exploit could allow the attacker to execute arbitrary code on the underlying operating system as the root user.

Weaknesses (CWE)

  • CWE-460 — Improper Cleanup on Thrown Exception
  • CWE-755 — Improper Handling of Exceptional Conditions

References

Scores

VersionScoreVectorScored by
CVSS 3.1MEDIUM 6.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Lcisco
CVSS 3.1MEDIUM 6.7CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:LNVD · psirt@cisco.com (Secondary)
CVSS 3.1HIGH 7.2CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HNVD · nvd@nist.gov (Primary)
CVSS 2.0HIGH 9.0AV:N/AC:L/Au:S/C:C/I:C/A:CNVD · nvd@nist.gov (Primary)

European references

Affected configurations (NVD CPE)

Affected products

ProductVersions
Cisco · Cisco TelePresence Video Communication Server (VCS) Expresswayaffected n/a

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD