Path traversal in Sphinx - CVE-2020-29050
Published: January 11, 2022
Vulnerability identifier: #VU59364
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-29050
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Sphinx
Sphinx
Software vendor:
Sphinx Technologies
Sphinx Technologies
Description
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation error when processing directory traversal sequences, because the mysql client can be used for CALL SNIPPETS and load_file operations on a full pathname (e.g., a file in the /etc directory). A remote user can send a specially crafted HTTP request and read arbitrary files on the system.
Please note, the affected version does not require authentication by default (see vulnerability #VU59363) and therefore the vulnerability can be exploited by a remote non-authenticated attacker in the default configuration.
Remediation
Install update from vendor's website.