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CVE-2019-1911

Cisco Unified Communications Domain Manager Restricted Shell Escape Vulnerability

No known exploitation. EPSS puts it in the 25th percentile. Fixed in 11.5(3)PB4.

CVSS 3.05.3MediumEPSS percentile25th0.3% chance in 30 daysCISA KEVNot listedNo confirmed exploitation
No public exploit knownFix11.5(3)PB4Upgrade to this build

Published Updated Sources: CVE.org, NVD, BDU

NVD CVE.org

What to do

Find your product and version, then upgrade to the build on the right.

  • Cisco Unified Communications Domain ManagerAffected: ≥ unspecified, < 11.5(3)PB4Upgrade to: 11.5(3)PB4Stated by: CVE record
  • Cisco Hosted Collaboration SolutionAffected: ≤ 11.5\(3\)pb3Upgrade to: after 11.5\(3\)pb3Stated by: NVD

Versions as the sources state them. Full version matrix after sign-in

What it is

From the CVE record

A vulnerability in the CLI of Cisco Unified Communications Domain Manager (Cisco Unified CDM) Software could allow an authenticated, local attacker to escape the restricted shell. The vulnerability is due to insufficient input validation of shell commands. An attacker could exploit this vulnerability by executing crafted commands in the shell. A successful exploit could allow the attacker to escape the restricted shell and access commands in the context of the restricted shell user, which does not have root privileges.

In plain language

No plain-language summary for this CVE yet.

Exploitation

Where each signal puts this CVE on the scale from published to confirmed exploited.

EPSS25th
CISA KEV

Not in the catalog. CISA has not confirmed exploitation.

Public exploits

No public exploit or proof of concept found in the sources we track.

EPSS

0.3% chance of exploitation activity in the next 30 days, which ranks it in the 25th percentile of scored CVEs.

Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.

Lifecycle

4 events over 1965 days, from the signal feeds we watch.

  1. Patch availablerecord updated
  2. Publishedweakness classified

Affected products

Technical detail

CVSS 3.0 vector

Open in the CVSS calculator

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Scored 5.3 by NVD.

How it is reached

  • Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
  • Attack Complexity LowNo special conditions — the attack can be reliably reproduced
  • Privileges Required LowRequires basic user-level privileges
  • User Interaction NoneNo user interaction needed — fully automated exploitation

Scope

  • Scope UnchangedImpact is limited to the vulnerable component itself

Impact if exploited

  • Confidentiality LowSome restricted information is disclosed, but limited in scope
  • Integrity LowData modification is possible but limited in scope or consequence
  • Availability LowReduced performance or intermittent disruption of service

Weaknesses

Sources

References in the record

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