CVE-2023-1800
Published: 02 April 2023
Summary
CVE-2023-1800 is a high-severity Path Traversal: '../filedir' (CWE-24) vulnerability in Go-Fastdfs Project Go-Fastdfs. Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 2.2% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Deeper analysis
A critical vulnerability has been identified in sjqzhang go-fastdfs versions up to 1.4.3 within the upload function of the File Upload Handler component at the /group1/uploa endpoint. The issue stems from improper handling of user-supplied input that permits path traversal sequences such as '../filedir', corresponding to CWE-24 and CWE-434. It carries a CVSS 3.1 score of 7.3 reflecting network-accessible attack conditions with low complexity and no required privileges or user interaction.
Remote attackers can exploit the flaw by sending crafted upload requests to traverse directories on the server, enabling limited read, write, or modification actions on affected files. Publicly available proof-of-concept code demonstrates the attack vector, confirming that the vulnerability is exploitable in exposed deployments without authentication.
The associated EPSS score stands at 0.4731 with an identical peak value, indicating moderate but stable exploitation interest since disclosure. No vendor advisory or patch details appear among the referenced sources.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2023-1430
Vulnerability details
A vulnerability, which was classified as critical, has been found in sjqzhang go-fastdfs up to 1.4.3. Affected by this issue is the function upload of the file /group1/uploa of the component File Upload Handler. The manipulation leads to path traversal:…
more
'../filedir'. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-224768.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring identifiable owners for portable devices reduces the attack surface for unrestricted uploads of dangerous file types via anonymous media.
Dangerous file uploads can be detonated in the chamber to determine malice before any production write or execution occurs.
Prevents unrestricted writing of arbitrary or malicious firmware by keeping hardware write-protect enabled except under tightly controlled manual procedures.
Scans files from external sources on download/open/execute, blocking unrestricted uploads of dangerous file types.