Unauthenticated root access via credential argument injection
Published Dec 5, 2023 · Updated Feb 13, 2025
Argument injection in the administrative interfaces of Atos Unify OpenScape SBC, Branch, and BCF allows remote attackers to gain root access. PasswordMgr::call_osbpasswd applies escapeshellcmd rather than argument-safe quoting, leaving spaces in supplied passwords before a root-privileged parser accepts repeated options. No authentication is required; crafted credentials can create an SSH user, change the root password, or append the show operation to enter the web interface as an administrator.
Summary
What happened
Argument injection in the administrative interfaces of Atos Unify OpenScape SBC, Branch, and BCF allows remote attackers to gain root access. PasswordMgr::call_osbpasswd applies escapeshellcmd rather than argument-safe quoting, leaving spaces in supplied passwords before a root-privileged parser accepts repeated options. No authentication is required; crafted credentials can create an SSH user, change the root password, or append the show operation to enter the web interface as an administrator.
The record
- CVE
- CVE-2023-6269
- Published
- Dec 5, 2023
- Updated
- Feb 13, 2025
- Vendor
- Atos Unify
- Product
- OpenScape Session Border Controller
- Classifications
- CWE-88, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 5, 2023CVE publishedPublication date reported by the CVE source.
- Feb 13, 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=0 <V10 R3.4.0
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
- SEC Consult credential argument-injection proof of conceptfunctional · demonstrated
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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