Arbitrary command execution via unsanitized port
Published Mar 30, 2021 · Updated Sep 17, 2024
Command injection in kill-by-port before 0.0.2 allows attackers to execute arbitrary commands via attacker-controlled killByPort input. The killByPort function interpolates its port argument directly into a child_process execSync lsof command without sanitization; the patch applies parseInt before interpolation. Exploitation requires a caller to pass untrusted data to the function, and successful execution runs with the Node.js process privileges.
Summary
What happened
Command injection in kill-by-port before 0.0.2 allows attackers to execute arbitrary commands via attacker-controlled killByPort input. The killByPort function interpolates its port argument directly into a child_process execSync lsof command without sanitization; the patch applies parseInt before interpolation. Exploitation requires a caller to pass untrusted data to the function, and successful execution runs with the Node.js process privileges.
The record
- CVE
- CVE-2021-23363
- Published
- Mar 30, 2021
- Updated
- Sep 17, 2024
- Vendor
- Guy Mograbi
- Product
- kill-by-port
- Classifications
- CWE-78, T1059.004
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Mar 30, 2021CVE publishedPublication date reported by the CVE source.
- Sep 17, 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=unspecified <0.0.2
What conditions does exploitation require?
What is affected?
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
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Technologies
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