CVE-2018-9846 Command injection in n/a
Attackers can inject IMAP commands via the archive plugin's uid parameter, potentially executing code or reading data if the plugin is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-9846?
CVE-2018-9846 is a high-severity command injection vulnerability in Debian Debian Linux, published on 7 Apr 2018. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
In Roundcube from versions 1.2.0 to 1.3.5, with the archive plugin enabled and configured, it's possible to exploit the unsanitized, user-controlled "_uid" parameter (in an archive.php _task=mail&_mbox=INBOX&_action=plugin.move2archive request) to perform an MX (IMAP) injection attack by placing an IMAP command after a %0d%0a sequence. NOTE: this is less easily exploitable in 1.3.4 and later because of a Same Origin Policy protection mechanism.
Weakness: CWE-20
Which versions are affected by CVE-2018-9846?
It affects 2 products.
Products include Debian Debian Linux, Roundcube Webmail.
How do I fix CVE-2018-9846?
Upgrade to a fixed version.
Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.
Is CVE-2018-9846 being exploited?
There is no known exploitation of CVE-2018-9846 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as DEBIAN-CVE-2018-9846, DSA-4181-1, GHSA-3v75-9ch3-wfrw, MGASA-2018-0288, UBUNTU-CVE-2018-9846.