CVE-2017-16651

Roundcube Webmail File Disclosure

7.8 HIGHActively exploited (CISA KEV)Public exploitEPSS 45.7%

Published9 Nov 2017
Added to CISA KEV3 Nov 2021
Remediation due3 May 2022

Description

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.

CVSS 3.1 breakdown

Attack vectorLocal

Attack complexityLow

Privileges requiredLow

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Roundcube Webmail≤ 1.1.9 · 1.2.0 · 1.2.1 · 1.2.2

Debian Linux7.0 · 9.0

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

Patch & vendor advisories

References

http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.htmlExploitThird Party AdvisoryVDB Entry
https://github.com/roundcube/roundcubemail/issues/6026Issue TrackingPatchThird Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.1.10Issue TrackingRelease NotesThird Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.2.7Issue TrackingRelease NotesThird Party Advisory
https://github.com/roundcube/roundcubemail/releases/tag/1.3.3Issue TrackingRelease NotesThird Party Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00039.htmlMailing ListThird Party Advisory
https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10Issue TrackingVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-16651US Government Resource
https://www.debian.org/security/2017/dsa-4030Issue TrackingThird Party Advisory
http://www.securityfocus.com/bid/101793Third Party AdvisoryVDB Entry

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

Frequently asked

Is CVE-2017-16651 being actively exploited?

Yes. CVE-2017-16651 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 3 Nov 2021.

How severe is CVE-2017-16651?

CVE-2017-16651 has a CVSS 3.1 base score of 7.8, rated high. EPSS estimates a 45.7% probability of exploitation.

Which products are affected by CVE-2017-16651?

Affected products include Roundcube Webmail, Debian Linux.

How do I fix CVE-2017-16651?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2017-16651 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, Secuno flags any affected asset as top-priority automatically. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.