Vulnerability Details : CVE-2020-8865
This vulnerability allows remote attackers to execute local PHP files on affected installations of Horde Groupware Webmail Edition 5.2.22. Authentication is required to exploit this vulnerability. The specific flaw exists within edit.php. When parsing the params[template] parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of the www-data user. Was ZDI-CAN-10469.
Vulnerability category: Directory traversalExecute code
Products affected by CVE-2020-8865
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:horde:groupware:5.2.22:*:*:*:webmail:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-8865
3.90%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 88 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-8865
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
6.5
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:P/A:P |
8.0
|
6.4
|
NIST | |
|
6.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
2.8
|
3.4
|
Zero Day Initiative | |
|
6.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
2.8
|
3.4
|
NIST |
CWE ids for CVE-2020-8865
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
-
The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.Assigned by: zdi-disclosures@trendmicro.com (Secondary)
References for CVE-2020-8865
-
https://www.zerodayinitiative.com/advisories/ZDI-20-276/
ZDI-20-276 | Zero Day InitiativeThird Party Advisory;VDB Entry
-
https://lists.debian.org/debian-lts-announce/2020/04/msg00009.html
[SECURITY] [DLA 2175-1] php-horde-trean security updateMailing List;Third Party Advisory
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