Vulnerability in Roundcube Webmail
CVE-2017-16651
Roundcube Webmail before 1.1.10, 1.2.x before 1.2.7, and 1.3.x before 1.3.3 allows unauthorized access to arbitrary files on the host's filesystem, including configuration files, as exploited in the wild in November 2017. The attacker must be able to authenticate at the target system with a valid username/password as the attack requires an active session. The issue is related to file-based attachment plugins and _task=settings&_action=upload-display&_from=timezone requests.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.457 (98.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.367 · newest: 0.457 · change: +0.091
Affected products
- Roundcube Webmail — versions 1.2.0, 1.2.1, 1.2.2
- Debian Linux — versions 7.0, 9.0
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- github.com/roundcube/roundcubemail/releases/tag/1.3.3 (Third Party Advisory, Release Notes, Issue Tracking)
- roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10 (Issue Tracking, Vendor Advisory)
- lists.debian.org/debian-lts-announce/2017/11/msg00039.html (mailing-list, Mailing List, Third Party Advisory)
- github.com/roundcube/roundcubemail/releases/tag/1.1.10 (Third Party Advisory, Release Notes, Issue Tracking)
- www.securityfocus.com/bid/101793 (VDB Entry, Third Party Advisory, vdb-entry)
- github.com/roundcube/roundcubemail/releases/tag/1.2.7 (Third Party Advisory, Release Notes, Issue Tracking)
- www.debian.org/security/2017/dsa-4030 (vendor-advisory, Third Party Advisory, Issue Tracking)
- github.com/roundcube/roundcubemail/issues/6026 (Patch, Third Party Advisory, Issue Tracking)
- packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.html (Exploit, VDB Entry, Third Party Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2017-16651?
- CVE-2017-16651 is a high-severity vulnerability in Roundcube Webmail, classified under Files or Directories Accessible to External Parties. CVSS score: 7.8/10. Published 2017-11-09.
- How severe is CVE-2017-16651?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2017-16651 known to be exploited?
- Yes. CVE-2017-16651 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 6 public proof-of-concept repositories are indexed.