FreeBSD : GitLab -- two vulnerabilities (abcc5ad3-7e6a-11e7-93f7-d43d7e971a1b)

This script is Copyright (C) 2017 Tenable Network Security, Inc.

Synopsis :

The remote FreeBSD host is missing one or more security-related

Description :

GitLab reports : Remote Command Execution in git client An external
code review performed by Recurity-Labs identified a remote command
execution vulnerability in git that could be exploited via the 'Repo
by URL' import option in GitLab. The command line git client was not
properly escaping command line arguments in URLs using the SSH
protocol before invoking the SSH client. A specially crafted URL could
be used to execute arbitrary shell commands on the GitLab server. To
fully patch this vulnerability two fixes were needed. The Omnibus
versions of GitLab contain a patched git client. For source users who
may still be running an older version of git, GitLab now also blocks
import URLs containing invalid host and usernames. This issue has been
assigned CVE-2017-12426. Improper sanitization of GitLab export files
on import GitLab versions 8.13.3, 8.12.8, 8.11.10, 8.10.13, and 8.9.12
contained a patch for a critical directory traversal vulnerability in
the GitLab export feature that could be exploited by including
symlinks in the export file and then re-importing it to a GitLab
instance. This vulnerability was patched by checking for and removing
symlinks in these files on import. Recurity-Labs also determined that
this fix did not properly remove symlinks for hidden files. Though not
as dangerous as the original vulnerability hidden file symlinks could
still be used to steal copies of git repositories belonging to other
users if the path to the git repository was known by the attacker. An
updated fix has been included in these releases that properly removes
all symlinks. This import option was not made available to non-admin
users until GitLab 8.13.0.

See also :

Solution :

Update the affected packages.

Risk factor :

Medium / CVSS Base Score : 6.8

Family: FreeBSD Local Security Checks

Nessus Plugin ID: 102467 ()

Bugtraq ID:

CVE ID: CVE-2017-12426

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