Cloud Vulnerability DB
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Vulnerability DatabaseCVE-2020-15591
CVE-2020-15591:
Linux Debian vulnerability analysis and mitigation
Overview
CVE-2020-15591 affects F*EX (Frams' Fast File EXchange) versions before fex-20160919_2. The vulnerability was discovered in the fexsrv component and allows unauthenticated remote code execution through eval injection (NVD, Secfault Advisory).
Technical details
The vulnerability exists in the 'copy' function within lib/fex.pp, which contains an unsafe eval() call that processes user-controlled input. The issue is triggered through the bintar function in bin/fexsrv when handling special requests for F*EX UNIX clients via the 'xx.tar' script name. The vulnerability has a CVSS v3.1 Base Score of 9.8 CRITICAL (Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H) (NVD).
Impact
The vulnerability allows unauthenticated remote attackers to execute arbitrary code on the affected system through eval injection. Since no authentication is required to exploit this vulnerability, it poses a critical security risk to affected installations (Secfault Advisory).
Mitigation and workarounds
The vulnerability has been fixed in version fex-20160919_2. Users should upgrade to this version or later to mitigate the risk (NVD).
Additional resources
Source: This report was generated using AI
Related Linux Debian vulnerabilities:
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