SARA / Free Tools / CVE / CVE-2020-1631

CVE-2020-1631 — Juniper Junos OS Path Traversal Vulnerability

A vulnerability in the HTTP/HTTPS service used by J-Web, Web Authentication, Dynamic-VPN (DVPN), Firewall Authentication Pass-Through with Web-Redirect, and Zero Touch Provisioning (ZTP) allows an unauthenticated attacker to perform local file inclusion (LFI) or path traversal. U

CVSS
8.8 HIGH
EPSS
5.40% (top 10.00%)
CWE
CWE-22, CWE-73
Published
2020-05-04T09:25:12.322Z
Last modified
2025-10-21T23:35:44.571Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
CISA KEV — Actively Exploited
Added to KEV
2022-03-25
BOD 22-01 due
2022-04-15
Ransomware use
Unknown

01What is this vulnerability?

A vulnerability in the HTTP/HTTPS service used by J-Web, Web Authentication, Dynamic-VPN (DVPN), Firewall Authentication Pass-Through with Web-Redirect, and Zero Touch Provisioning (ZTP) allows an unauthenticated attacker to perform local file inclusion (LFI) or path traversal. Using this vulnerability, an attacker may be able to inject commands into the httpd.log, read files with 'world'…

02Affected products

VendorProductVersions
Juniper NetworksJunos OS12.3, 12.3X48, 14.1X53, 15.1, 15.1X49, 16.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.3, 18.4, 19.1, 19.2, 19.3, 19.4, 20.1

03Active exploitation status

Yes — actively exploited. Added to the CISA KEV catalog on 2022-03-25. Ransomware use: Unknown.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

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07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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