#VU24186 Path traversal in Juniper Junos OS


Published: 2020-01-10

Vulnerability identifier: #VU24186

Vulnerability risk: Medium

CVSSv3.1: 4.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-1606

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

The vulnerability allows a remote user to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote authenticated J-web user can send a specially crafted HTTP request and read files with "world" readable permission and delete files with "world" writeable permission.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Juniper Junos OS: 12.3 - 12.3R13, 12.3x48 - 12.3X48-D80, 14.1x53 - 14.1X53-D50, 15.1F6 - 15.1F6-S12, 15.1 - 15.1R7-S4, 15.1X49 - 15.1X49-D171, 15.1X53 - 15.1X53-D237, 16.1 - 16.1R7-S4, 16.2 - 16.2R3, 17.1 - 17.1R3, 17.2 - 17.2R3-S1, 17.3 - 17.3R3-S4, 17.4 - 17.4R2-S8, 18.1 - 18.1R4, 18.2 - 18.2R2-S6, 18.3 - 18.3R2-S2, 18.4 - 18.4R1-S5, 19.1R1 - 19.1R1-S3


External links
http://jvn.jp/en/jp/JVN07375820/index.html
http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10985&actp=METADATA


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


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