CVE-2024-23749
CVE-2024-23749 is a high-severity vulnerability in 9bis Kitty with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-77.
Key facts
- Severity: High (CVSS 3.x base score 7.8)
- EPSS exploit prediction: 5% (91st percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-21205
- Weakness: CWE-77
- Affected product: 9bis Kitty
- Published:
- Last modified:
Description
KiTTY versions 0.76.1.13 and before is vulnerable to command injection via the filename variable, occurs due to insufficient input sanitization and validation, failure to escape special characters, and insecure system calls (at lines 2369-2390). This allows an attacker to add inputs inside the filename variable, leading to arbitrary code execution.
Frequently asked questions
- What is CVE-2024-23749?
- KiTTY versions 0.76.1.13 and before is vulnerable to command injection via the filename variable, occurs due to insufficient input sanitization and validation, failure to escape special characters, and insecure system calls (at lines 2369-2390). This allows an attacker to add inputs inside the filename variable, leading to arbitrary code execution.
- How severe is CVE-2024-23749?
- CVE-2024-23749 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-23749 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (91st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-23749?
- CVE-2024-23749 affects 9bis Kitty. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-23749?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-23749 have an EU (EUVD) identifier?
- Yes. CVE-2024-23749 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21205.
- When was CVE-2024-23749 published?
- CVE-2024-23749 was published on 2024-02-09 and last updated on 2026-06-17.
References
- http://packetstormsecurity.com/files/177031/KiTTY-0.76.1.13-Command-Injection.html
- http://seclists.org/fulldisclosure/2024/Feb/13
- http://seclists.org/fulldisclosure/2024/Feb/14
- https://blog.defcesco.io/CVE-2024-23749
Affected products (1)
- cpe:2.3:a:9bis:kitty:*:*:*:*:*:windows:*:*
More vulnerabilities in 9bis Kitty
- CVE-2016-2563 — Critical (CVSS 9.8): Stack-based buffer overflow in the SCP command-line utility in PuTTY before 0.67 and KiTTY 0.66.6.3 and earlier allows…
- CVE-2024-25004 — High (CVSS 7.8): KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the username, occurs due to…
- CVE-2024-25003 — High (CVSS 7.8): KiTTY versions 0.76.1.13 and before is vulnerable to a stack-based buffer overflow via the hostname, occurs due to…
- CVE-2023-48795 — Medium (CVSS 5.9): The SSH transport protocol with certain OpenSSH extensions, found in OpenSSH before 9.6 and other products, allows…
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