CVE-2020-1631
Actively exploited. CVE-2020-1631 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-03-25) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
A path traversal 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 remote code execution.
CSIRTS triage
- What
- A path traversal vulnerability in Junos OS allows an unauthenticated attacker to perform remote code execution.
- Who is affected
- Deployments of Junos OS are affected.
- Urgency
- Remediation is critical due to the severity of the vulnerability and its exploitation status.
- Action
- Upgrade to the latest version of Junos OS.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 91% of all EPSS-scored CVEs.
Advisory coverage (1)
- criticalexploitedCVE-2020-1631: Juniper Junos OS Path Traversal Vulnerabilitycisa-kev · 2022-03-25
External references
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