CVE-2021-29416

Public Exploit

Description

An issue was discovered in PortSwigger Burp Suite before 2021.2. During viewing of a malicious request, it can be manipulated into issuing a request that does not respect its upstream proxy configuration. This could leak NetNTLM hashes on Windows systems that fail to block outbound SMB.

6.5

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.31%

Vendor Advisory portswigger.net

Affected: n/a n/a

References

Link	Tags
https://hackerone.com/reports/1054382	issue tracking exploit third party advisory
https://portswigger.net/burp/releases/professional-community-2020-12?requestededition=professional	release notes vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-29416?: CVE-2021-29416 has been scored as a medium severity vulnerability.
How to fix CVE-2021-29416?: To fix CVE-2021-29416, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29416 being actively exploited in the wild?: It is possible that CVE-2021-29416 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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