LibreNMS up to 1.47 collectd.inc.php passthru rrd_cmd injection

Summaryinfo

A vulnerability classified as critical has been found in LibreNMS up to 1.47. This affects the function passthru of the file html/includes/graphs/device/collectd.inc.php. The manipulation of the argument rrd_cmd as part of Parameter leads to injection. This vulnerability is listed as CVE-2019-10669. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability was found in LibreNMS up to 1.47 and classified as critical. This issue affects the function passthru of the file html/includes/graphs/device/collectd.inc.php. The manipulation of the argument rrd_cmd as part of a Parameter leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

An issue was discovered in LibreNMS through 1.47. There is a command injection vulnerability in html/includes/graphs/device/collectd.inc.php where user supplied parameters are filtered with the mysqli_escape_real_string function. This function is not the appropriate function to sanitize command arguments as it does not escape a number of command line syntax characters such as ` (backtick), allowing an attacker to inject commands into the variable $rrd_cmd, which gets executed via passthru().

The weakness was presented 09/09/2019. The identification of this vulnerability is CVE-2019-10669 since 03/31/2019. The attack may be initiated remotely. Required for exploitation is a simple authentication. Technical details as well as a public exploit are known. MITRE ATT&CK project uses the attack technique T1055 for this issue.

A public exploit has been developed by Eldar Marcussen/Shelby Pace in Ruby/Metasploit and been published 1 days after the advisory. The exploit is available at exploit-db.com. It is declared as functional. By approaching the search of inurl:html/includes/graphs/device/collectd.inc.php it is possible to find vulnerable targets with Google Hacking.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Exploit-DB (47375). See VDB-141417, VDB-141416, VDB-141415 and VDB-141414 for similar entries. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Name

• LibreNMS

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42
• 1.43
• 1.44
• 1.45
• 1.46
• 1.47

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

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Entryinfo

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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