CVE - CVE-2020-5202

CVE-ID
CVE-2020-5202	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
Description
apt-cacher-ng through 3.3 allows local users to obtain sensitive information by hijacking the hardcoded TCP port. The /usr/lib/apt-cacher-ng/acngtool program attempts to connect to apt-cacher-ng via TCP on localhost port 3142, even if the explicit SocketPath=/var/run/apt-cacher-ng/socket command-line option is passed. The cron job /etc/cron.daily/apt-cacher-ng (which is active by default) attempts this periodically. Because 3142 is an unprivileged port, any local user can try to bind to this port and will receive requests from acngtool. There can be sensitive data in these requests, e.g., if AdminAuth is enabled in /etc/apt-cacher-ng/security.conf. This sensitive data can leak to unprivileged local users that manage to bind to this port before the apt-cacher-ng daemon can.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:http://www.openwall.com/lists/oss-security/2020/01/20/4 MISC:https://security-tracker.debian.org/tracker/CVE-2020-5202 MLIST:[oss-security] 20200120 CVE-2020-5202: apt-cacher-ng: a local unprivileged user can impersonate the apt-cacher-ng daemon, possible credentials leak URL:http://www.openwall.com/lists/oss-security/2020/01/20/4 MLIST:[oss-security] 20200120 CVE-2020-5202: apt-cacher-ng: a local unprivileged user can impersonate the apt-cacher-ng daemon, possible credentials leak URL:https://seclists.org/oss-sec/2020/q1/21 SUSE:openSUSE-SU-2020:0124 URL:http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00057.html SUSE:openSUSE-SU-2020:0146 URL:http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00065.html
Assigning CNA
MITRE Corporation
Date Record Created
20200102	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20200102)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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