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Password Pusher rate limiter can be bypassed by forging proxy headers

Moderate severity GitHub Reviewed Published Nov 20, 2024 in pglombardo/PasswordPusher • Updated Nov 20, 2024

Package

bundler pwpush (RubyGems)

Affected versions

< 1.49.0

Patched versions

1.49.0

Description

Impact

Password Pusher comes with a configurable rate limiter. In versions prior to v1.49.0, the rate limiter could be bypassed by forging proxy headers allowing bad actors to send unlimited traffic to the site potentially causing a denial of service.

Patches

In v1.49.0, a fix was implemented to only authorize proxies on local IPs which resolves this issue.

If you are running a remote proxy, please see this documentation on how to authorize the IP address of your remote proxy.

Workarounds

It is highly suggested to upgrade to at least v1.49.0 to mitigate this risk.

If for some reason you cannot immediately upgrade, the alternative is that you can add rules to your proxy and/or firewall to not accept external proxy headers such as X-Forwarded-* from clients.

References

The new settings are configurable to authorize remote proxies.

References

@pglombardo pglombardo published to pglombardo/PasswordPusher Nov 20, 2024
Published by the National Vulnerability Database Nov 20, 2024
Published to the GitHub Advisory Database Nov 20, 2024
Reviewed Nov 20, 2024
Last updated Nov 20, 2024

Severity

Moderate

CVSS overall score

This score calculates overall vulnerability severity from 0 to 10 and is based on the Common Vulnerability Scoring System (CVSS).
/ 10

CVSS v3 base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low

CVSS v3 base metrics

Attack vector: More severe the more the remote (logically and physically) an attacker can be in order to exploit the vulnerability.
Attack complexity: More severe for the least complex attacks.
Privileges required: More severe if no privileges are required.
User interaction: More severe when no user interaction is required.
Scope: More severe when a scope change occurs, e.g. one vulnerable component impacts resources in components beyond its security scope.
Confidentiality: More severe when loss of data confidentiality is highest, measuring the level of data access available to an unauthorized user.
Integrity: More severe when loss of data integrity is the highest, measuring the consequence of data modification possible by an unauthorized user.
Availability: More severe when the loss of impacted component availability is highest.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

EPSS score

0.045%
(17th percentile)

Weaknesses

CVE ID

CVE-2024-52796

GHSA ID

GHSA-ffp2-8p2h-4m5j

Source code

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