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    CVE-2017-11747

    main.c in Tinyproxy 1.8.4 and earlier creates a /run/tinyproxy/tinyproxy.pid file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for tinyproxy.pid modification before a root script executes a "kill `cat /run/tinyproxy/tinyproxy.pid`" command.

    Published:Jul 30, 2017
    Last Modified:Apr 20, 2025
    EPS:Jul 30, 2017
    EPSS Score:0.0003
    CVSS Score:5.5

    Affected Products

    Vendor
    Tinyproxy Project
    Product
    Tinyproxy

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-269 Improper Privilege Management

    Related CVEs

    CVE-2026-54388 (CVSS 9.3) — Tinyproxy through 1.11.3, fixed in commit 364cdb6, fails to reject requests containing multiple Content-Length…
    CVE-2026-54387 (CVSS 9.3) — Tinyproxy through 1.11.3, fixed in commit ff45d3b, fails to reconcile conflicting Content-Length and Transfer-…
    CVE-2026-55202 (CVSS 8.8) — Tinyproxy through 1.11.3, fixed in commit 09312a1, fails to properly validate the Host header during stathost …
    CVE-2026-31842 (CVSS 8.7) — Tinyproxy through 1.11.3 is vulnerable to HTTP request parsing desynchronization due to a case-sensitive compa…
    CVE-2025-63938 (CVSS 6.5) — Tinyproxy through 1.11.2 contains an integer overflow vulnerability in the strip_return_port() function within…
    CVE-2023-49606 (CVSS 9.8) — A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy…
    CVE-2022-40468 (CVSS 7.5) — Potential leak of left-over heap data if custom error page templates containing special non-standard variables…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High