Vulnerability Name:

CVE-2020-8866 (CCN-177506)

Assigned:2020-02-26
Published:2020-02-26
Updated:2022-10-07
Summary: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 v3 Severity:6.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N)
5.9 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): High
Availibility (A): None
4.3 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N)
3.9 Low (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N/E:P/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): Low
Availibility (A): None
CVSS v2 Severity:4.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
4.0 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:P/A:N)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): Partial
Availibility (A): None
Vulnerability Type:CWE-434
Vulnerability Consequences:File Manipulation
References:Source: MITRE
Type: CNA
CVE-2020-8866

Source: XF
Type: UNKNOWN
horde-cve20208866-file-upload(177506)

Source: MLIST
Type: Mailing List, Third Party Advisory
[debian-lts-announce] 20200329 [SECURITY] [DLA 2162-1] php-horde-form security update

Source: CCN
Type: Horde Web site
CVE-2020-8866: Arbitrary File Creation in Temporary Directory Vulnerability

Source: MISC
Type: Mailing List, Vendor Advisory
https://lists.horde.org/archives/announce/2020/001288.html

Source: CCN
Type: Packet Storm Security [03-12-2020]
Horde Groupware Webmail Edition 5.2.22 PHAR Loading

Source: CCN
Type: Packet Storm Security [03-12-2020]
Horde Groupware Webmail Edition 5.2.22 PHP File Inclusion

Source: EXPLOIT-DB
Type: EXPLOIT
Offensive Security Exploit Database [03-11-2020]

Source: CCN
Type: WhiteSource Vulnerability Database
CVE-2020-8866

Source: CCN
Type: ZDI-20-275
Horde Groupware Webmail Edition add Page Unrestricted File Upload Arbitrary File Creation Vulnerability

Source: CCN
Type: ZDI-20-275
Horde Groupware Webmail Edition add Page Unrestricted File Upload Arbitrary File Creation Vulnerability

Source: MISC
Type: Third Party Advisory, VDB Entry
https://www.zerodayinitiative.com/advisories/ZDI-20-275/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:horde:groupware:5.2.22:*:*:*:webmail:*:*:*
  • OR cpe:/a:horde:horde_form:*:*:*:*:*:*:*:* (Version < 2.0.20)

    • Configuration 2:
  • cpe:/o:debian:debian_linux:8.0:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:horde:groupware_webmail_edition:*:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    BACK
    horde groupware 5.2.22
    horde horde form *
    debian debian linux 8.0
    horde groupware webmail edition *