Unauthenticated command execution via unsanitized cmdinput
Published Apr 5, 2024 · Updated Aug 19, 2024
Command injection in /goform/exeCommand in Tenda AC18 firmware 15.03.05.05 allows remote attackers to execute commands via crafted POST data. The formexeCommand handler passes attacker-controlled cmdinput to doSystemCmd without neutralizing shell metacharacters. Reachability requires management-interface access from an adjacent network; successful execution permits data access, alteration, or service interruption.
Summary
What happened
Command injection in /goform/exeCommand in Tenda AC18 firmware 15.03.05.05 allows remote attackers to execute commands via crafted POST data. The formexeCommand handler passes attacker-controlled cmdinput to doSystemCmd without neutralizing shell metacharacters. Reachability requires management-interface access from an adjacent network; successful execution permits data access, alteration, or service interruption.
The record
- CVE
- CVE-2024-30891
- Published
- Apr 5, 2024
- Updated
- Aug 19, 2024
- Vendor
- Shenzhen Tenda Technology Co., Ltd.
- Product
- AC18 Firmware
- Classifications
- CWE-77, T1059
- Attack vector
- adjacent
- Privileges
- unauthenticated
Timeline
How it unfolded
- Apr 5, 2024CVE publishedPublication date reported by the CVE source.
- Aug 19, 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=15.03.05.05
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
- Tenda AC18 formexeCommand proof of conceptproof of concept · unverified
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Technologies
Your stack
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Your stack
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