ScreenOS: XSS vulnerability in ScreenOS Firewall

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Summary

CVECVE-2017-2338
StatePUBLISHED
Assignerjuniper
Source PriorityCVE Program / NVD first with legacy fallback
Published2017-07-17 13:18:24 UTC
Updated2025-04-20 01:37:25 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.0 5.4 MEDIUM from [email protected]

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Problem Types: CWE-79 | persistent cross site scripting vulnerability

VersionSourceTypeScoreSeverityVector
3.0[email protected]Primary5.4MEDIUMCVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N
3.0[email protected]Secondary8.4HIGHCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
3.0CNADECLARED8.4HIGHCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
2.0[email protected]Primary3.5AV:N/AC:M/Au:S/C:N/I:P/A:N

CVSS v3.0 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
Low
Integrity
Low
Availability
None

CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Medium
Authentication
Single
Confidentiality
None
Integrity
Partial
Availability
None

AV:N/AC:M/Au:S/C:N/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Juniper Screenos 6.3.0 All All All
Operating System Juniper Screenos 6.3.0 r1 All All
Operating System Juniper Screenos 6.3.0 r10 All All
Operating System Juniper Screenos 6.3.0 r11 All All
Operating System Juniper Screenos 6.3.0 r12 All All
Operating System Juniper Screenos 6.3.0 r13 All All
Operating System Juniper Screenos 6.3.0 r14 All All
Operating System Juniper Screenos 6.3.0 r15 All All
Operating System Juniper Screenos 6.3.0 r16 All All
Operating System Juniper Screenos 6.3.0 r17 All All
Operating System Juniper Screenos 6.3.0 r18 All All
Operating System Juniper Screenos 6.3.0 r19 All All
Operating System Juniper Screenos 6.3.0 r2 All All
Operating System Juniper Screenos 6.3.0 r21 All All
Operating System Juniper Screenos 6.3.0 r22 All All
Operating System Juniper Screenos 6.3.0 r23 All All
Operating System Juniper Screenos 6.3.0 r23b All All
Operating System Juniper Screenos 6.3.0 r3 All All
Operating System Juniper Screenos 6.3.0 r4 All All
Operating System Juniper Screenos 6.3.0 r5 All All
Operating System Juniper Screenos 6.3.0 r6 All All
Operating System Juniper Screenos 6.3.0 r7 All All
Operating System Juniper Screenos 6.3.0 r8 All All
Operating System Juniper Screenos 6.3.0 r9 All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Juniper Networks ScreenOS affected 6.3.0 prior to 6.3.0r24 SSG Series

References

ReferenceSourceLinkTags
Juniper ScreenOS Multiple HTML Injection Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com Third Party Advisory, VDB Entry
2017-07 Security Bulletin: ScreenOS: Multiple XSS vulnerabilities in ScreenOS Firewall - Juniper Networks af854a3a-2127-422b-91ae-364da2661108 kb.juniper.net Vendor Advisory
Juniper ScreenOS Input Validation Flaw Lets Remote Users Conduct Cross-Site Scripting Attacks - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com Third Party Advisory, VDB Entry
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Gaku Mochizuki/Toshitsugu Yoneyama from Mitsui Bussan Secure Directions, Inc., for reporting this issue to the JPCERT/CC. (en)

CNA: Craig Young, Principal Security Researcher, Tripwire VERT, for responsibly reporting this vulnerability. (en)

Additional Advisory Data

Workarounds

CNA: Use access lists or firewall filters to limit access to the firewall's WebUI only from trusted hosts.

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