CVE-2022-22245 Junos OS: Path traversal vulnerability in J-Web

Medium 4.3 Published Updated

An authenticated attacker can upload arbitrary files to Junos OS devices via J-Web, compromising filesystem integrity.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2022-22245?

CVE-2022-22245 is a medium-severity path traversal vulnerability in Juniper Junos, published on 18 Oct 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

A Path Traversal vulnerability in the J-Web component of Juniper Networks Junos OS allows an authenticated attacker to upload arbitrary files to the device by bypassing validation checks built into Junos OS. The attacker should not be able to execute the file due to validation checks built into Junos OS. Successful exploitation of this vulnerability could lead to loss of filesystem integrity. This issue affects Juniper Networks Junos OS: all versions prior to 19.1R3-S9; 19.2 versions prior to 19.2R3-S6; 19.3 versions prior to 19.3R3-S7; 19.4 versions prior to 19.4R3-S9; 20.1 versions prior to 20.1R3-S5; 20.2 versions prior to 20.2R3-S5; 20.3 versions prior to 20.3R3-S5; 20.4 versions prior to 20.4R3-S4; 21.1 versions prior to 21.1R3-S2; 21.2 versions prior to 21.2R3-S1; 21.3 versions prior to 21.3R2-S2, 21.3R3; 21.4 versions prior to 21.4R1-S2, 21.4R2-S1, 21.4R3; 22.1 versions prior to 22.1R1-S1, 22.1R2.

Weakness: CWE-22, CWE-23

Which versions are affected by CVE-2022-22245?

It affects 1 product.

Products include Juniper Junos.

How do I fix CVE-2022-22245?

No fix has been published for CVE-2022-22245 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2022-22245 being exploited?

There is no known exploitation of CVE-2022-22245 in the wild and no public exploit code.

All Juniper Junos vulnerabilities

Sources

Also known as GHSA-ch96-rh97-j6j3.

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