Information disclosure in Checkmk

1) Error Handling

EUVDB-ID: #VU65563

Risk: Low

CVSSv4.0: 2.9 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2017-14955

CWE-ID: CWE-388 - Error Handling

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to improper error handling, related to failed-login save feature. A remote attacker can gain access to sensitive information.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Checkmk: 1.2.0 b1 - 1.2.8

CPE2.3

• cpe:2.3:a:tribe29:checkmk:1.2.0:b1:*:*:*:*:*:*
• cpe:2.3:a:tribe29:checkmk:1.2.0:p1:*:*:*:*:*:*
• cpe:2.3:a:tribe29:checkmk:1.2.0:b2:*:*:*:*:*:*

External links

https://mathias-kettner.com/check_mk_werks.php?edition_id=raw&branch=1.2.8
https://mathias-kettner.de/check_mk_werks.php?werk_id=5208&HTML=yes
https://www.exploit-db.com/exploits/43021/

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. However, proof of concept for this vulnerability is available.