Call ManagerHardware / appliance · Cisco

CVE-2007-5468

MEDIUM · 5.0 CVSS v2.0 Published 2007-10-16
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
59/100
Remediation priority · Elevated
Remotely reachable No privileges Zero-click

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
Cisco CallManager 5.1.1.3000-5 does not verify the Digest authentication header URI against the Request URI in SIP messages, which allows remote attackers to use sniffed Digest authentication credentials to call arbitrary telephone numbers or spoof caller ID (aka "toll fraud and authentication forward attack").

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 · moderate confidence

Cisco CallManager 5.1.1.3000-5 fails to validate that the URI in the Digest authentication header matches the Request URI in incoming SIP messages. This allows an attacker who has intercepted Digest authentication credentials to reuse them in crafted SIP requests, enabling toll fraud (making unauthorized calls to arbitrary telephone numbers) and caller ID spoofing.

MitigationApply the vendor patch or upgrade to a Cisco CallManager version that implements proper URI validation in SIP Digest authentication. Until then, monitor SIP traffic for anomalous authentication patterns and consider network segmentation to limit exposure of SIP infrastructure.

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
Call ManagerHardware / appliance
Affected:= 5.1.1.3000

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
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None

AV:N/AC:L/Au:N/C:P/I:N/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. Identify Cisco CallManager installation
    Check system inventory or run 'show version' on the Cisco device to confirm it is a Cisco CallManager system
    Affected if System is not a Cisco CallManager (not affected)
  2. Verify the CallManager version
    Access the Cisco CallManager Administration interface (Cisco CallManager Serviceability) or use the 'utils system version' CLI command to determine the exact version number
    Affected if Version is NOT exactly 5.1.1.3000 (not affected)
  3. Confirm SIP is enabled
    In Cisco CallManager Administration, go to System > Device Pool or System > Service Parameters and check if SIP is configured as an enabled protocol for device registration or trunking
    Affected if SIP protocol is not enabled or configured (not affected)
  4. Check SIP Digest authentication configuration
    In CallManager Administration, examine SIP Trunk security settings under Device > Trunk or examine the SIP digest authentication configuration for enabled devices
    Affected if SIP Digest authentication is not in use (likely not affected, though the flawed code may still exist)

A system is affected only if it is exactly Cisco CallManager version 5.1.1.3000 with SIP protocol and Digest authentication enabled, as the vulnerability allows replay of stolen credentials for unauthorized calls.

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 or upgrade to a Cisco CallManager version that implements proper URI validation in SIP Digest authentication. Until then, monitor SIP traffic for anomalous authentication patterns and consider network segmentation to limit exposure of SIP infrastructure.

Fix this in Call Manager Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
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Scan for this in your stack

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dbcve dependency scanner

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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-2007-5468 in production — separate from our analysis above.

No notes yet

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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