Root code execution via unchecked SMB2 message writes
Published Jun 6, 2024 · Updated Aug 1, 2024
Out-of-bounds write in Sonos Era 100 firmware 15.9 allows remote attackers to execute arbitrary code through crafted SMB2 messages. The SMB2 handler fails to validate user-supplied message data before writing into an allocated buffer, permitting a write beyond its boundary. No authentication or user interaction is required, but the attacker must share the speaker's local network; successful exploitation runs code as root.
Summary
What happened
Out-of-bounds write in Sonos Era 100 firmware 15.9 allows remote attackers to execute arbitrary code through crafted SMB2 messages. The SMB2 handler fails to validate user-supplied message data before writing into an allocated buffer, permitting a write beyond its boundary. No authentication or user interaction is required, but the attacker must share the speaker's local network; successful exploitation runs code as root.
The record
- CVE
- CVE-2024-5267
- Published
- Jun 6, 2024
- Updated
- Aug 1, 2024
- Vendor
- Sonos
- Product
- Era 100
- Classifications
- CWE-787, T1210
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 6, 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?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=15.9
- Affected versionversion=15.9 (build 75146030)
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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