CVE-2024-45256
CVE-2024-45256 is a critical-severity vulnerability with a CVSS 3.x base score of 9.8. 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-22.
Key facts
- Severity: Critical (CVSS 3.x base score 9.8)
- EPSS exploit prediction: 6% (92nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-41394
- Weakness: CWE-22
- Published:
- Last modified:
Description
An arbitrary file write issue in the exfiltration endpoint in BYOB (Build Your Own Botnet) 2.0 allows attackers to overwrite SQLite databases and bypass authentication via an unauthenticated HTTP request with a crafted parameter. This occurs in file_add in api/files/routes.py.
Frequently asked questions
- What is CVE-2024-45256?
- An arbitrary file write issue in the exfiltration endpoint in BYOB (Build Your Own Botnet) 2.0 allows attackers to overwrite SQLite databases and bypass authentication via an unauthenticated HTTP request with a crafted parameter. This occurs in file_add in api/files/routes.py.
- How severe is CVE-2024-45256?
- CVE-2024-45256 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-45256 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 6% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2024-45256?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
- Does CVE-2024-45256 have an EU (EUVD) identifier?
- Yes. CVE-2024-45256 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-41394.
- When was CVE-2024-45256 published?
- CVE-2024-45256 was published on 2024-08-26 and last updated on 2026-06-17.
References
- https://blog.chebuya.com/posts/unauthenticated-remote-command-execution-on-byob/
- https://github.com/chebuya/exploits/tree/main/BYOB-RCE
- https://github.com/malwaredllc/byob
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