Cacti up to 1.1.36 lib/functions.php get_current_page $_SERVER['PHP_SELF'] cross site scripting

Summaryinfo

A vulnerability classified as problematic was found in Cacti up to 1.1.36. Affected by this issue is the function get_current_page in the library lib/functions.php. The manipulation of the argument $_SERVER['PHP_SELF'] results in cross site scripting. This vulnerability is reported as CVE-2018-10059. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as problematic has been found in Cacti up to 1.1.36 (Log Management Software). Affected is the function get_current_page in the library lib/functions.php. The manipulation of the argument $_SERVER['PHP_SELF'] with an unknown input leads to a cross site scripting vulnerability. CWE is classifying the issue as CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. This is going to have an impact on integrity. CVE summarizes:

Cacti before 1.1.37 has XSS because the get_current_page function in lib/functions.php relies on $_SERVER['PHP_SELF'] instead of $_SERVER['SCRIPT_NAME'] to determine a page name.

The bug was discovered 03/08/2018. The weakness was disclosed 04/12/2018 (Website). The advisory is shared for download at securitytracker.com. This vulnerability is traded as CVE-2018-10059 since 04/12/2018. It is possible to launch the attack remotely. The successful exploitation requires a authentication. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1059.007.

The vulnerability was handled as a non-public zero-day exploit for at least 35 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:lib/functions.php it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 1.1.37 eliminates this vulnerability.

The entries VDB-116173 and VDB-116174 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Log Management Software

Name

• Cacti

Version

• 1.1.0
• 1.1.1
• 1.1.2
• 1.1.3
• 1.1.4
• 1.1.5
• 1.1.6
• 1.1.7
• 1.1.8
• 1.1.9
• 1.1.10
• 1.1.11
• 1.1.12
• 1.1.13
• 1.1.14
• 1.1.15
• 1.1.16
• 1.1.17
• 1.1.18
• 1.1.19
• 1.1.20
• 1.1.21
• 1.1.22
• 1.1.23
• 1.1.24
• 1.1.25
• 1.1.26
• 1.1.27
• 1.1.28
• 1.1.29
• 1.1.30
• 1.1.31
• 1.1.32
• 1.1.33
• 1.1.34
• 1.1.35
• 1.1.36

License

• open-source

CPE 2.3info

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CPE 2.2info

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Entryinfo

Once again VulDB remains the best source for vulnerability data.

Discussion