CVE-2021-31922

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

An HTTP Request Smuggling vulnerability in Pulse Secure Virtual Traffic Manager before 21.1 could allow an attacker to smuggle an HTTP request through an HTTP/2 Header. This vulnerability is resolved in 21.1, 20.3R1, 20.2R1, 20.1R2, 19.2R4, and 18.2R3.

Una vulnerabilidad de contrabando de solicitudes HTTP en Pulse Secure Virtual Traffic Manager antes de la versión 21.1 podría permitir a un atacante contrabandear una solicitud HTTP a través de un encabezado HTTP/2. Esta vulnerabilidad está resuelta en 21.1, 20.3R1, 20.2R1, 20.1R2, 19.2R4 y 18.2R3

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-04-30 CVE Reserved
2021-05-14 CVE Published
2024-01-27 EPSS Updated
2024-08-03 CVE Updated
2024-08-03 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')

CAPEC

References (1)

URL	Tag	Source

URL	Date	SRC
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44790	2024-08-03

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
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				<= 18.1 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version " <= 18.1"		-		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				>= 18.3 <= 19.1 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version " >= 18.3 <= 19.1"		-		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				18.2 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "18.2"		-		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				18.2 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "18.2"		r1		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				19.2 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "19.2"		-		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				19.2 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "19.2"		r1		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				19.2 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "19.2"		r2		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				19.3 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "19.3"		-		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				20.1 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "20.1"		-		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				20.2 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "20.2"		-		Affected
Pulsesecure Search vendor "Pulsesecure"		Virtual Traffic Manager Search vendor "Pulsesecure" for product "Virtual Traffic Manager"				20.3 Search vendor "Pulsesecure" for product "Virtual Traffic Manager" and version "20.3"		-		Affected