Cacti 1.1.27 Log clog.php filename information disclosure

Summaryinfo

A vulnerability described as problematic has been identified in Cacti 1.1.27. The impacted element is an unknown function of the file clog.php of the component Log Handler. Such manipulation of the argument filename with the input passwd leads to information disclosure. This vulnerability is documented as CVE-2017-16661. The attack can be executed remotely. There is not any exploit available. Upgrading the affected component is recommended.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Cacti 1.1.27 (Log Management Software). Affected by this issue is an unknown code block of the file clog.php of the component Log Handler. The manipulation of the argument filename with the input value passwd leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

Cacti 1.1.27 allows remote authenticated administrators to read arbitrary files by placing the Log Path into a private directory, and then making a clog.php?filename= request, as demonstrated by filename=passwd (with a Log Path under /etc) to read /etc/passwd.

The bug was discovered 11/07/2017. The weakness was released 11/08/2017 (Website). The advisory is available at github.com. This vulnerability is handled as CVE-2017-16661 since 11/07/2017. The attack may be launched remotely. The requirement for exploitation is a simple authentication. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1592 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:clog.php it is possible to find vulnerable targets with Google Hacking. The vulnerability scanner Nessus provides a plugin with the ID 104796 (Fedora 26 : cacti (2017-9762a831b2)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 170566 (OpenSUSE Security Update for cacti, cacti-spine (openSUSE-SU-2017:3051-1)).

Upgrading eliminates this vulnerability. A possible mitigation has been published 3 weeks after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104796). Entries connected to this vulnerability are available at VDB-109186, VDB-109225 and VDB-109287. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Type

• Log Management Software

Name

• Cacti

Version

• 1.1.27

License

• open-source

Website

• Product: https://github.com/Cacti/cacti/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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