CVE-2021-0231

22.04.2021, 20:15

A path traversal vulnerability in the Juniper Networks SRX and vSRX Series may allow an authenticated J-web user to read sensitive system files. This issue affects Juniper Networks Junos OS on SRX and vSRX Series: 19.3 versions prior to 19.3R2-S6, 19.3R3-S1; 19.4 versions prior to 19.4R2-S4, 19.4R3; 20.1 versions prior to 20.1R1-S4, 20.1R2; 20.2 versions prior to 20.2R1-S3, 20.2R2; This issue does not affect Juniper Networks Junos OS versions prior to 19.3R1.

Path Traversal

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	NIST	6.5 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
juniper	CNA	6.5 MEDIUM	NETWORK	LOW	LOW	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CVE	ADP	---				---

Base Score

CVSS 3.x

EPSS Score

Percentile: 50%

Vendor	Product	Version
juniper	junos	19.3
juniper	junos	19.3:r1
juniper	junos	19.3:r1-s1
juniper	junos	19.3:r2
juniper	junos	19.3:r2-s1
juniper	junos	19.3:r2-s2
juniper	junos	19.3:r2-s3
juniper	junos	19.3:r2-s4
juniper	junos	19.3:r2-s5
juniper	junos	19.3:r3
juniper	junos	19.4:r1
juniper	junos	19.4:r1-s1
juniper	junos	19.4:r1-s2
juniper	junos	19.4:r2
juniper	junos	19.4:r2-s1
juniper	junos	19.4:r2-s2
juniper	junos	19.4:r2-s3
juniper	junos	20.1:r1
juniper	junos	20.1:r1-s1
juniper	junos	20.1:r1-s2
juniper	junos	20.1:r1-s3
juniper	junos	20.2:r1
juniper	junos	20.2:r1-s1
juniper	junos	20.2:r1-s2

𝑥

= Vulnerable software versions

Common Weakness Enumeration

CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
The software uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the software does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

References

https://kb.juniper.net/JSA11126