Root code execution via untrusted utility search path
Published May 14, 2024 · Updated Aug 2, 2024
Privilege escalation in Phoenix Contact CHARX SEC-3xxx firmware 1.5.1 and earlier allows local users to execute arbitrary code as root. The privileged charx_set_timezone binary executes a program from an untrusted search location, allowing attacker-controlled code to inherit its root context. Exploitation requires an existing ability to run low-privileged code locally on the charging controller; network access alone is insufficient.
Summary
What happened
Privilege escalation in Phoenix Contact CHARX SEC-3xxx firmware 1.5.1 and earlier allows local users to execute arbitrary code as root. The privileged charx_set_timezone binary executes a program from an untrusted search location, allowing attacker-controlled code to inherit its root context. Exploitation requires an existing ability to run low-privileged code locally on the charging controller; network access alone is insufficient.
The record
- CVE
- CVE-2024-28133
- Published
- May 14, 2024
- Updated
- Aug 2, 2024
- Vendor
- Phoenix Contact
- Product
- CHARX SEC-3100
- Classifications
- CWE-426, T1574.008
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- May 14, 2024CVE publishedPublication date reported by the CVE source.
- Aug 2, 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=0 <=1.5.1
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.
Reported exploitation
- Pwn2Own CHARX SEC-3100 exploit demonstrationreported exploitation
Technologies
Your stack
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Your stack
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