Vulnerability · Published Oct 19, 2021 · Assigned by juniper

CVE-2021-31349Session Smart Router: Authentication Bypass Vulnerability

Critical 9.8

In plain English

A critical-severity improper authentication in 128 Technology Session Smart Router from Juniper Networks. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.7% (higher than 78% of all known vulnerabilities).

Severity (CVSS 3.1)9.8Critical

Exploit odds (30 days)1.7%top 22.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

The usage of an internal HTTP header created an authentication bypass vulnerability (CWE-287), allowing an attacker to view internal files, change settings, manipulate services and execute arbitrary code. This issue affects all Juniper Networks 128 Technology Session Smart Router versions prior to 4.5.11, and all versions of 5.0 up to and including 5.0.1.

Affected products (as reported)

Vendor	Product	Versions
Juniper Networks	128 Technology Session Smart Router	unspecified – before 4.5.115.0 – through 5.0.1

Weakness: CWE-287 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

https://kb.juniper.net/JSA11256 x_refsource_CONFIRM