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
Link | Resource |
---|---|
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00057.html | Mailing List Third Party Advisory |
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00065.html | Mailing List Third Party Advisory |
http://www.openwall.com/lists/oss-security/2020/01/20/4 | Exploit Mailing List Third Party Advisory |
https://seclists.org/oss-sec/2020/q1/21 | Exploit Mailing List Third Party Advisory |
https://security-tracker.debian.org/tracker/CVE-2020-5202 | Patch Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: mitre
Published: 2020-01-21T17:54:04
Updated: 2020-01-29T22:06:01
Reserved: 2020-01-02T00:00:00
Link: CVE-2020-5202
JSON object: View
NVD Information
Status : Analyzed
Published: 2020-01-21T18:15:13.060
Modified: 2022-01-01T20:03:08.133
Link: CVE-2020-5202
JSON object: View
Redhat Information
No data.
CWE