CVE-2020-8866

NameCVE-2020-8866
DescriptionThis 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.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
ReferencesDLA-2162-1
NVD severitymedium
Debian Bugs955020

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
php-horde-form (PTS)jessie2.0.8-2vulnerable
jessie (security)2.0.8-2+deb8u2fixed
stretch (security), stretch2.0.15-1+deb9u1vulnerable
buster2.0.18-3.1+deb10u1fixed
sid2.0.19-2vulnerable

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
php-horde-formsource(unstable)(unfixed)955020
php-horde-formsourcebuster2.0.18-3.1+deb10u1
php-horde-formsourcejessie2.0.8-2+deb8u2DLA-2162-1

Notes

[stretch] - php-horde-form <no-dsa> (Minor issue)
https://lists.horde.org/archives/announce/2020/001288.html
https://www.zerodayinitiative.com/advisories/ZDI-20-275/
https://github.com/horde/Form/commit/813f8e7e9479fad4546b89c569325ee9eef60b0f

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