CVE-2017-2335

high-risk

Published 2017-07-17

A persistent cross site scripting vulnerability in NetScreen WebUI of Juniper Networks Juniper NetScreen Firewall+VPN running ScreenOS allows a user with the 'security' role to inject HTML/JavaScript content into the management session of other users including the administrator. This enables the lower-privileged user to effectively execute commands with the permissions of an administrator. This issue affects Juniper Networks ScreenOS 6.3.0 releases prior to 6.3.0r24 on SSG Series. No other Juniper Networks products or platforms are affected by this issue.

Do I need to act?

0.21% chance of exploitation

EPSS score — low exploit probability

Not on CISA KEV list

No confirmed active exploitation reported to CISA

Patch status unknown

Check vendor advisories for fix availability and mitigation guidance

CVSS 8.4/10 High

NETWORK / LOW complexity

Affected Products (20)

Screenos

Affected Vendors

Juniper

References (6)

Third Party Advisory http://www.securityfocus.com/bid/99590

Third Party Advisory http://www.securitytracker.com/id/1038881

Vendor Advisory https://kb.juniper.net/JSA10782

Third Party Advisory http://www.securityfocus.com/bid/99590

Third Party Advisory http://www.securitytracker.com/id/1038881

Vendor Advisory https://kb.juniper.net/JSA10782

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high-risk

Severity 29/34 · Critical

Exploitability 1/34 · Minimal

Exposure 21/34 · High