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CVE-2020-8866

Published: Mar 23, 2020Updated: Nov 21, 2024 Sources: CVE List NVDCWE-434
NVD MITRE
6.5CVSSMEDIUM
EPSS Score
9.6%
Top 5.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

This vulnerability allows remote attackers to create arbitrary files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within add.php. The issue results from the lack of proper validation of user-supplied data, which can allow the upload of arbitrary files. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10125.

CVSS Vector Breakdown

AV:NAC:LPR:LUI:NS:UC:NI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-434

Affected Products

groupwarehordeCommunications
horde formhordeCommunications
debian linuxdebian
On-premOS
Operating Systems / linux-distro
Groupware Webmail EditionHordeCommunications
hordeoss-projectCommunications
debianoss-projectGBOperating Systemsaka debian gnu/linux

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

3 techniques
Command and Control
Initial Access
Persistence
View detailed technique mapping

References

https://lists.debian.org/debian-lts-announce/2020/03/msg00036.html
lists.debian.org
https://lists.horde.org/archives/announce/2020/001288.html
lists.horde.org
https://www.zerodayinitiative.com/advisories/ZDI-20-275/
zerodayinitiative.com

Timeline

Published
Mar 23, 2020
Last Updated
Nov 21, 2024

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