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Unified Communications Manager Im And Presence ServiceApplication · Cisco

CVE-2024-20310

MEDIUM · 6.1 CVSS v3.1 Published 2024-04-03
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
68/100
Remediation priority · Elevated
Remotely reachable No privileges

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
A vulnerability in the web-based interface of Cisco Unified Communications Manager IM & Presence Service (Unified CM IM&P) could allow an unauthenticated, remote attacker to conduct a cross-site scripting (XSS) attack against an authenticated user of the interface. This vulnerability exists because the web-based management interface does not properly validate user-supplied input. An attacker could exploit this vulnerability by persuading an authenticated user of the interface to click a crafted link. A successful exploit could allow the attacker to execute arbitrary script code in the context of the affected interface or access sensitive browser-based information.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · high confidence

Cross-site scripting (XSS) vulnerability in Cisco Unified Communications Manager IM & Presence Service web interface due to improper input validation. An unauthenticated remote attacker can exploit this by crafting a malicious link that, when clicked by an authenticated user, executes arbitrary script code in the context of the affected interface.

MitigationApply the vendor patch from Cisco when available. Until then, user awareness training to avoid clicking untrusted links and monitoring for suspicious activity is recommended.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
Unified Communications Manager Im And Presence ServiceApplication
Affected:= 10.0\(1\)= 10.0\(1\)su1= 10.0\(1\)su2= 10.5\(1\)= 10.5\(1\)su1= 10.5\(1\)su2= 10.5\(1\)su3= 10.5\(2\)= 10.5\(2\)su1= 10.5\(2\)su2= 10.5\(2\)su2a= 10.5\(2\)su3

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Confirm Cisco Unified Communications Manager IM & Presence Service is installed
    Identify whether the Cisco Unified Communications Manager IM & Presence Service is deployed in your environment. This is typically a separate node or service component alongside Cisco Unified Communications Manager.
    Affected if The product is not present in your environment, the vulnerability does not apply.
  2. Determine the installed version of IM & Presence Service
    Use the appropriate method to retrieve the installed version number of the Cisco Unified Communications Manager IM & Presence Service. This may be available via the Cisco Unified Communications Manager administrative interface, CLI, or system inventory.
    Affected if You cannot retrieve a version number, making it impossible to determine if you are running an affected version.
  3. Compare your version against the affected list
    Match your installed version against the following affected versions: 10.0(1), 10.0(1)su1, 10.0(1)su2, 10.5(1), 10.5(1)su1, 10.5(1)su2, 10.5(1)su3, 10.5(2), 10.5(2)su1, 10.5(2)su2, 10.5(2)su2a, 10.5(2)su3
    Affected if Your installed version matches one of these specific versions, indicating you are running a vulnerable release.
  4. Verify the web interface is accessible
    Determine whether the web interface for IM & Presence Service is exposed and accessible to users or attackers. This vulnerability requires the web interface to be reachable.
    Affected if The web interface is disabled or not accessible, the XSS flaw cannot be triggered even on a vulnerable version.
  5. Assess user access to the web interface
    Identify whether authenticated users have access to the IM & Presence Service web interface. The attack requires a malicious link to be clicked by an authenticated user.
    Affected if No authenticated users have access to the web interface, the exploitation vector is not present.

You are affected if Cisco Unified Communications Manager IM & Presence Service is installed, your version matches one of the 12 listed affected versions, and the web interface is accessible to authenticated users who could click a malicious link.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

From vendor data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Apply the vendor patch from Cisco when available. Until then, user awareness training to avoid clicking untrusted links and monitoring for suspicious activity is recommended.

Fix this in Unified Communications Manager Im And Presence Service Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2024-20310 in production — separate from our analysis above.

No notes yet

Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.

What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data