module

marked npm module "heading" ReDoS

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Disclosed
N/A
Created
Mar 19, 2019

Description

This module exploits a Regular Expression Denial of Service vulnerability
in the npm module "marked". The vulnerable portion of code that this module
targets is in the "heading" regular expression. Web applications that use
"marked" for generating html from markdown are vulnerable. Versions up to
0.4.0 are vulnerable.

Authors

Adam Cazzolla, Sonatype Security Research
Nick Starke, Sonatype Security Research

References

Module Options

To display the available options, load the module within the Metasploit console and run the commands 'show options' or 'show advanced':


    msf > use auxiliary/dos/http/marked_redos
    msf auxiliary(marked_redos) > show actions
        ...actions...
    msf auxiliary(marked_redos) > set ACTION < action-name >
    msf auxiliary(marked_redos) > show options
        ...show and set options...
    msf auxiliary(marked_redos) > run
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