Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Roundcube | Webmail | >= 1.2.0, <= 1.3.5 |
| Debian | Debian Linux | 9.0 |
Related Weaknesses (CWE)
References
- https://github.com/roundcube/roundcubemail/issues/6229PatchThird Party Advisory
- https://github.com/roundcube/roundcubemail/issues/6238PatchThird Party Advisory
- https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a
- https://www.debian.org/security/2018/dsa-4181Third Party Advisory
- https://github.com/roundcube/roundcubemail/issues/6229PatchThird Party Advisory
- https://github.com/roundcube/roundcubemail/issues/6238PatchThird Party Advisory
- https://medium.com/%40ndrbasi/cve-2018-9846-roundcube-303097048b0a
- https://www.debian.org/security/2018/dsa-4181Third Party Advisory
FAQ
What is CVE-2018-9846?
CVE-2018-9846 is a vulnerability with a CVSS score of 8.8 (HIGH). 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&_mbo...
How severe is CVE-2018-9846?
CVE-2018-9846 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2018-9846?
Check the references section above for vendor advisories and patch information. Affected products include: Roundcube Webmail, Debian Debian Linux.