CVE-2018-5764 Security feature bypass in n/a
Remote attackers can bypass argument sanitization in rsyncd by using multiple --protect-args flags, potentially exposing sensitive data or enabling further attacks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2018-5764?
CVE-2018-5764 is a high-severity vulnerability in Canonical Ubuntu Linux, published on 17 Jan 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The parse_arguments function in options.c in rsyncd in rsync before 3.1.3 does not prevent multiple --protect-args uses, which allows remote attackers to bypass an argument-sanitization protection mechanism.
Which versions are affected by CVE-2018-5764?
It affects 3 products.
Linux distribution packages (9)
rsync SUSE:Linux Enterprise Desktop 12 SP2 | All versions | 3.1.0-13.10.1 |
rsync SUSE:Linux Enterprise Desktop 12 SP3 | All versions | 3.1.0-13.10.1 |
rsync SUSE:Linux Enterprise Server 11 SP4 | All versions | 3.0.4-2.53.6.1 |
rsync SUSE:Linux Enterprise Server 12 SP2 | All versions | 3.1.0-13.10.1 |
rsync SUSE:Linux Enterprise Server 12 SP3 | All versions | 3.1.0-13.10.1 |
rsync SUSE:Linux Enterprise Server for Raspberry Pi 12 SP2 | All versions | 3.1.0-13.10.1 |
rsync SUSE:Linux Enterprise Server for SAP Applications 11 SP4 | All versions | 3.0.4-2.53.6.1 |
rsync SUSE:Linux Enterprise Server for SAP Applications 12 SP2 | All versions | 3.1.0-13.10.1 |
rsync SUSE:Linux Enterprise Server for SAP Applications 12 SP3 | All versions | 3.1.0-13.10.1 |
Products include Canonical Ubuntu Linux, Debian Debian Linux, Samba Rsync.
How do I fix CVE-2018-5764?
Upgrade to a fixed version.
Is CVE-2018-5764 being exploited?
There is no known exploitation of CVE-2018-5764 in the wild and no public exploit code.
Public exploit code: 1 proofs of concept on GitHub.
Other vulnerabilities in Canonical Ubuntu Linux
Sources
Also known as ALPINE-CVE-2018-5764, DEBIAN-CVE-2018-5764, DLA-1247-1, DLA-2833-1, GHSA-qp2v-jrh4-vgj2, MGASA-2018-0103 and 3 more.