Credential and VoIP traffic disclosure via unauthenticated endpoints
Published May 1, 2024 · Updated Aug 1, 2024
Information disclosure in Cisco IP Phone firmware allows remote attackers to retrieve credentials and VoIP traffic without authentication. Specific web-management endpoints omit authentication checks and expose device access that records user credentials and traffic, including VoIP calls. Any network-reachable attacker can invoke those endpoints without credentials; the documented consequence is confidential traffic capture and replay, not modification or service interruption.
Summary
What happened
Information disclosure in Cisco IP Phone firmware allows remote attackers to retrieve credentials and VoIP traffic without authentication. Specific web-management endpoints omit authentication checks and expose device access that records user credentials and traffic, including VoIP calls. Any network-reachable attacker can invoke those endpoints without credentials; the documented consequence is confidential traffic capture and replay, not modification or service interruption.
The record
- CVE
- CVE-2024-20378
- Published
- May 1, 2024
- Updated
- Aug 1, 2024
- Vendor
- ClamAV
- Product
- Cisco IP Phone 6821 with Multiplatform Firmware
- Classifications
- CWE-305, T1040
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 1, 2024CVE publishedPublication date reported by the CVE source.
- Aug 1, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=0 <=12.0.4
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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