CVE-2024-52796

Password Pusher's rate limiter can be bypassed by forging proxy headers

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

Attend

*SSVC

Descriptions

Password Pusher, an open source application to communicate sensitive information over the web, 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. In v1.49.0, a fix was implemented to only authorize proxies on local IPs which resolves this issue. As a workaround, one may add rules to one's proxy and/or firewall to not accept external proxy headers such as `X-Forwarded-*` from clients.

Password Pusher, una aplicación de código abierto para comunicar información confidencial a través de la web, viene con un limitador de velocidad configurable. En versiones anteriores a la v1.49.0, el limitador de velocidad se podía eludir falsificando encabezados de proxy que permitían a los actores maliciosos enviar tráfico ilimitado al sitio, lo que podría causar una denegación de servicio. En la v1.49.0, se implementó una solución para autorizar solo servidores proxy en direcciones IP locales, lo que resuelve este problema. Como workaround, se pueden agregar reglas al servidor proxy o al firewall para no aceptar encabezados de proxy externos como `X-Forwarded-*` de los clientes.

*Credits: N/A

CVSS Scores

GitHubv3.1 5.3

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:Attend

Exploitation

None

Automatable

Yes

Tech. Impact

Partial

* Organization's Worst-case Scenario

Timeline

2024-11-15 CVE Reserved
2024-11-20 CVE Published
2024-11-20 CVE Updated
2024-11-21 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-770: Allocation of Resources Without Limits or Throttling

CAPEC

References (3)

URL	Tag	Source
https://docs.pwpush.com/docs/proxies/#trusted-proxies	X_refsource_misc
https://github.com/pglombardo/PasswordPusher/releases/tag/v1.49.0	X_refsource_misc
https://github.com/pglombardo/PasswordPusher/security/advisories/GHSA-ffp2-8p2h-4m5j	X_refsource_confirm

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pglombardo Search vendor "Pglombardo"		PasswordPusher Search vendor "Pglombardo" for product "PasswordPusher"				< 1.49.0 Search vendor "Pglombardo" for product "PasswordPusher" and version " < 1.49.0"		en		Affected