Service interruption via unchecked HTTP packet copying
Published Aug 7, 2024 · Updated Aug 7, 2024
Buffer overflow in Cisco SPA300 and SPA500 Series IP Phone web interfaces allows remote attackers to force a device reload via HTTP. The web interface copies packet data without adequately checking input size or packet errors, allowing internal buffer processing to trigger the reload. No authentication or user interaction is required, and the result is an interruption of phone service rather than data disclosure or modification.
Summary
What happened
Buffer overflow in Cisco SPA300 and SPA500 Series IP Phone web interfaces allows remote attackers to force a device reload via HTTP. The web interface copies packet data without adequately checking input size or packet errors, allowing internal buffer processing to trigger the reload. No authentication or user interaction is required, and the result is an interruption of phone service rather than data disclosure or modification.
The record
- CVE
- CVE-2024-20451
- Published
- Aug 7, 2024
- Updated
- Aug 7, 2024
- Vendor
- ClamAV
- Product
- Cisco Small Business IP Phones
- Classifications
- CWE-120, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Aug 7, 2024CVE publishedPublication date reported by the CVE source.
- Aug 7, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
Compare your product and version with the public record. A matching version still requires validation against your environment.
Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=1.0.17
- Affected versionversion=7.3.7
- Affected versionversion=7.4.3
- Affected versionversion=7.4.4
- Affected versionversion=7.4.6
- Affected versionversion=7.4.7
- Affected versionversion=7.4.8
- Affected versionversion=7.4.9
- Affected versionversion=7.5.1
- Affected versionversion=7.5.2
- Affected versionversion=7.5.2a
- Affected versionversion=7.5.2b
- Affected versionversion=7.5.3
- Affected versionversion=7.5.4
- Affected versionversion=7.5.5
- Affected versionversion=7.5.5a
- Affected versionversion=7.5.5b
- Affected versionversion=7.5.6
- Affected versionversion=7.5.6a
- Affected versionversion=7.5.6c
- Affected versionversion=7.5.6(XU)
- Affected versionversion=7.5.7
- Affected versionversion=7.5.7s
- Affected versionversion=7.6.0
- Affected versionversion=7.6.1
- Affected versionversion=7.6.2
- Affected versionversion=7.6.2SR1
- Affected versionversion=7.6.2SR2
- Affected versionversion=7.6.2SR3
- Affected versionversion=7.6.2SR4
- Affected versionversion=7.6.2SR5
- Affected versionversion=7.6.2SR6
- Affected versionversion=7.6.2SR7
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.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
See the directory against your own environment.
Your stack
Check the software in your environment
Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.
Book a demo