Arch Linux update for couchdb

1) Privilege escalation

EUVDB-ID: #VU14323

Risk: High

CVSSv4.0: 2.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:U/U:Amber]

CVE-ID: CVE-2018-11769

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote administrative attacker to gain elevated privileges on the target system.

The vulnerability exists due to insufficient validation of administrator-supplied configuration settings via the HTTP API. A remote attacker can bypass the blacklist of configuration settings that are not allowed to be modified via the HTTP API and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected package couchdb to version 2.2.0-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3

• cpe:2.3:o:arch_linux:arch_linux:*:*:*:*:*:*:*:*

External links

https://security.archlinux.org/advisory/ASA-201808-9

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.

2) OS command injection

EUVDB-ID: #VU14324

Risk: High

CVSSv4.0: 6.4 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:A/U:Amber]

CVE-ID: CVE-2017-12636

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: Yes

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 the affected package couchdb to version 2.2.0-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3

• cpe:2.3:o:arch_linux:arch_linux:*:*:*:*:*:*:*:*

External links

https://security.archlinux.org/advisory/ASA-201808-9

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.

3) Privilege escalation

EUVDB-ID: #VU14325

Risk: High

CVSSv4.0: 2.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H/E:U/U:Amber]

CVE-ID: CVE-2018-8007

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote administrative attacker to gain elevated privileges on the target system.

The vulnerability exists due to insufficient validation of administrator-supplied configuration settings via the HTTP API. A remote attacker can bypass the blacklist of configuration settings that are not allowed to be modified via the HTTP API and execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation

Update the affected package couchdb to version 2.2.0-1.

Vulnerable software versions

Arch Linux: All versions

CPE2.3

• cpe:2.3:o:arch_linux:arch_linux:*:*:*:*:*:*:*:*

External links

https://security.archlinux.org/advisory/ASA-201808-9

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.