Vulnerability identifier: #VU14324

Vulnerability risk: High

CVSSv3.1: 8.4 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2017-12636

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
CouchDB
Server applications / Database software

Vendor: Apache Foundation

Description

The vulnerability allows a remote administrative attacker to execute arbitrary shell commands on the target system.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can configure the database server via HTTP(S) that include(s) paths for operating system-level binaries that are subsequently launched by CouchDB to execute arbitrary shell commands as the CouchDB user, including downloading and executing scripts from the public internet.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 1.7.0 or 2.1.1.

Vulnerable software versions

CouchDB: 0.8.0 - 2.1.0

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External links
http://lists.apache.org/thread.html/6c405bf3f8358e6314076be9f48c89a2e0ddf00539906291ebdf0c67@%3Cdev.couchdb.apache.org%3E

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.