Network-adjacent root command execution via unvalidated dhcpd input
Published May 16, 2023 · Updated Jan 22, 2025
OS command injection in SRM 1.2 before 1.2.5-8227-6 and SRM 1.3 before 1.3.1-9346-3 allows man-in-the-middle attackers to run commands. The dhcpd binary passes a user-supplied string to a system call without adequate validation, allowing injected input to execute as root. Exploitation requires a network-adjacent position capable of manipulating DHCP traffic; success compromises the router's data, configuration, and operation.
Summary
What happened
OS command injection in SRM 1.2 before 1.2.5-8227-6 and SRM 1.3 before 1.3.1-9346-3 allows man-in-the-middle attackers to run commands. The dhcpd binary passes a user-supplied string to a system call without adequate validation, allowing injected input to execute as root. Exploitation requires a network-adjacent position capable of manipulating DHCP traffic; success compromises the router's data, configuration, and operation.
The record
- CVE
- CVE-2023-32955
- Published
- May 16, 2023
- Updated
- Jan 22, 2025
- Vendor
- Synology
- Product
- Synology Router Manager (SRM)
- Classifications
- CWE-78, T1059.004
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- May 16, 2023CVE publishedPublication date reported by the CVE source.
- Jan 22, 2025Record 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=1.2 <1.2.5-8227-6
- Affected versionversion=1.3 <1.3.1-9346-3
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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