Vulnerability Report

CVE-2017-16651

CISA KEV Active

Title: Roundcube Webmail Auth Bypass

Auth Bypass

Proof Of Concept

PoC Available for CVE-2017-16651

CWE Category CWE-552
Published Date Nov 09, 2017
Modified Date Jun 17, 2026
Exploit Status Available
Score 7.8 CVSS v3.1
Exploit Probability (EPSS)
36.92%

Vulnerability Summary

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.

Impacted Vendors

C
cobalt 1
R
roundcube 1
V
vdesk 1

Reference Links

http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.html http://www.securityfocus.com/bid/101793 https://github.com/roundcube/roundcubemail/issues/6026 https://github.com/roundcube/roundcubemail/releases/tag/1.1.10 https://github.com/roundcube/roundcubemail/releases/tag/1.2.7 https://github.com/roundcube/roundcubemail/releases/tag/1.3.3 https://lists.debian.org/debian-lts-announce/2017/11/msg00039.html https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10 https://www.debian.org/security/2017/dsa-4030 http://packetstormsecurity.com/files/161226/Roundcube-Webmail-1.2-File-Disclosure.html http://www.securityfocus.com/bid/101793 https://github.com/roundcube/roundcubemail/issues/6026 https://github.com/roundcube/roundcubemail/releases/tag/1.1.10 https://github.com/roundcube/roundcubemail/releases/tag/1.2.7 https://github.com/roundcube/roundcubemail/releases/tag/1.3.3 https://lists.debian.org/debian-lts-announce/2017/11/msg00039.html https://roundcube.net/news/2017/11/08/security-updates-1.3.3-1.2.7-and-1.1.10 https://www.debian.org/security/2017/dsa-4030 https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-16651
CVSS v3.1
Source Entity [email protected]
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity HIGH
7.8
Attack Vector
LOCAL
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0
Source Entity [email protected]
Severity MEDIUM
4.6
Access Vector
N/A
Authentication
N/A
RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2017-16651 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/starnightcyber/Exploit-Database-For-Webmail
View Code
GitHub https://github.com/ropbear/CVE-2017-16651
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data or affected products updated.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.