CVE-2020-5202

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Summary

CVECVE-2020-5202
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-01-21 18:15:00 UTC
Updated2022-01-01 20:03:00 UTC
Descriptionapt-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.

Risk And Classification

Problem Types: NVD-CWE-noinfo

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Apt-cacher-ng Project Apt-cacher-ng All All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Debian Debian Linux 10.0 All All All
Operating System Debian Debian Linux 8.0 All All All
Operating System Debian Debian Linux 9.0 All All All
Operating System Opensuse Backports sle-15 sp1 All All
Operating System Opensuse Leap 15.1 All All All

References

ReferenceSourceLinkTags
[security-announce] openSUSE-SU-2020:0124-1: important: Security update SUSE lists.opensuse.org Third Party Advisory
CVE-2020-5202 MISC security-tracker.debian.org Patch, Third Party Advisory
oss-security - CVE-2020-5202: apt-cacher-ng: a local unprivileged user can impersonate the apt-cacher-ng daemon, possible credentials leak MISC www.openwall.com Exploit, Mailing List, Third Party Advisory
[security-announce] openSUSE-SU-2020:0146-1: important: Security update SUSE lists.opensuse.org
oss-sec: CVE-2020-5202: apt-cacher-ng: a local unprivileged user can impersonate the apt-cacher-ng daemon, possible credentials leak MLIST seclists.org Exploit, Mailing List, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
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