CVE-2023-6004
MEDIUMCVSS 4.8/10EPSS 0.45%
Last modified
CVE-2023-6004 is a medium-severity vulnerability rated 4.8/10 on the CVSS scale. A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
Description
A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Libssh | Libssh | >= 0.8.0, < 0.9.8 |
| Libssh | Libssh | >= 0.10.0, < 0.10.6 |
| Fedoraproject | Fedora | 38 |
| Redhat | Enterprise Linux | 8.0 |
| Redhat | Enterprise Linux | 9.0 |
References
- https://access.redhat.com/security/cve/CVE-2023-6004Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2251110Issue Tracking
- https://access.redhat.com/security/cve/CVE-2023-6004Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2251110Issue Tracking
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2023-6004?
A flaw was found in libssh. By utilizing the ProxyCommand or ProxyJump feature, users can exploit unchecked hostname syntax on the client. This issue may allow an attacker to inject malicious code into the command of the features mentioned through the hostname parameter.
How severe is CVE-2023-6004?
CVE-2023-6004 has a CVSS score of 4.8/10 (MEDIUM severity). The EPSS model estimates a 0.45% probability of exploitation in the next 30 days.
How do I fix CVE-2023-6004?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2023
- CVE-2023-5997Use after free in Garbage Collection in Google Chrome prior …8.8
- CVE-2023-5998Out-of-bounds Read in GitHub repository gpac/gpac prior to 2…7.5
- CVE-2023-5999Rejected reason: This is a duplicate.
- CVE-2023-6000The Popup Builder WordPress plugin before 4.2.3 does not pre…6.1
- CVE-2023-6001Prometheus metrics are available without authentication. The…7.5
- CVE-2023-6002YugabyteDB is vulnerable to cross site scripting (XSS) via l…6.1
- CVE-2023-6005The EventON WordPress plugin before 4.5.5, EventON WordPress…4.8
- CVE-2023-6006This vulnerability potentially allows local attackers to esc…6.7
- CVE-2023-6007The UserPro plugin for WordPress is vulnerable to unauthoriz…6.5
- CVE-2023-6008The UserPro plugin for WordPress is vulnerable to Cross-Site…4.3
- CVE-2023-6009The UserPro plugin for WordPress is vulnerable to privilege …8.8
- CVE-2023-6010Rejected reason: Accidental Request.
Are you affected by CVE-2023-6004?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST