#VU38851 OS Command Injection in SPIP - CVE-2017-9736

Vulnerability identifier: #VU38851

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2017-9736

CWE-ID: CWE-78

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SPIP
Web applications / CMS

Vendor: spip.net

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

SPIP 3.1.x before 3.1.6 and 3.2.x before Beta 3 does not remove shell metacharacters from the host field, allowing a remote attacker to cause remote code execution.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SPIP: 3.1.0 - 3.1.5, 3.2 - 3.2.0

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External links
https://www.debian.org/security/2017/dsa-3890
https://contrib.spip.net/CRITICAL-security-update-SPIP-3-1-6-and-SPIP-3-2-Beta
https://core.spip.net/projects/spip/repository/revisions/23593
https://core.spip.net/projects/spip/repository/revisions/23594

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.