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CVE Record

CVE-2017-2337: ScreenOS: XSS vulnerability in ScreenOS Firewall

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.

HighCVSS 8.4Not KEV-listedUpdated
Glexia's TakeAutomated analysis

Security readout for executives and security teams

A lower-privileged ScreenOS WebUI user with the security role could store malicious web content that runs in another user's management session, including an administrator's. If successful, this could let that user act with administrator permissions on the firewall. Exposure is limited to Juniper SSG Series devices running ScreenOS 6.3.0 releases earlier than 6.3.0r24, where NetScreen WebUI is used by multiple roles. The source states no other Juniper products or platforms are affected. Treat as high priority for any still-deployed SSG firewalls, because successful abuse can convert limited management access into administrator-level control. Priority drops if the organization has no affected ScreenOS SSG devices. Mitigation focus: Upgrade affected ScreenOS 6.3.0 SSG devices to 6.3.0r24 or a vendor-supported fixed release.; Review Juniper JSA10782 for current vendor remediation and operational guidance.; Inventory SSG Series firewalls and identify any ScreenOS 6.3.0 versions before 6.3.0r24..

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Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

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CVE-2017-2337 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
8.4 (3.0)
Known Exploited
No
Published

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

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.4CVSS 3.0HighCVSS:3.0/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H1.76Primary CVE score

Vulnerability scoring details

Base CVSS 3.0 score

8.4High
CVSS 3.0 vector shape for CVE-2017-2337Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
Juniper NetworksScreenOS6.3.0 prior to 6.3.0r24Listed
Weakness

CWE details

No CWE listed

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