Nixpkgs security tracker

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Permalink CVE-2025-14821

7.8 HIGH

CVSS version (CVSS): 3.1
Attack Vector (AV): Local (L)
Attack Complexity (AC): Low (L)
Privileges Required (PR): Low (L)
User Interaction (UI): None (N)
Scope (S): Unchanged (U)
Confidentiality (C): High (H)
Integrity (I): High (H)
Availability (A): High (H)
Modified Attack Vector (MAV): Local (L)
Modified Attack Complexity (MAC): Low (L)
Modified Privileges Required (MPR): Low (L)
Modified User Interaction (MUI): None (N)
Modified Confidentiality (MC): High (H)
Modified Scope (MS): Unchanged (U)
Modified Integrity (MI): High (H)
Modified Availability (MA): High (H)

updated 3 months, 2 weeks ago by @LeSuisse Activity log

Created suggestion 3 months, 2 weeks ago
@LeSuisse ignored
7 packages
- haskellPackages.libssh
- haskellPackages.libssh2
- haskellPackages.libssh2-conduit
- python312Packages.ansible-pylibssh
- python313Packages.ansible-pylibssh
- python314Packages.ansible-pylibssh
- tests.pkg-config.defaultPkgConfigPackages.libssh2
3 months, 2 weeks ago
@LeSuisse dismissed 3 months, 2 weeks ago

Libssh: libssh: insecure default configuration leads to local man-in-the-middle attacks on windows

A flaw was found in libssh. This vulnerability allows local man-in-the-middle attacks, security downgrades of SSH (Secure Shell) connections, and manipulation of trusted host information, posing a significant risk to the confidentiality, integrity, and availability of SSH communications via an insecure default configuration on Windows systems where the library automatically loads configuration files from the C:\etc directory, which can be created and modified by unprivileged local users.