#VU21701 Stored Cross-site scripting in Juniper Junos OS - CVE-2019-0047

Vulnerability identifier: #VU21701

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-0047

CWE-ID: CWE-79

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Juniper Junos OS
Operating systems & Components / Operating system

Vendor: Juniper Networks, Inc.

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data in J-Web interface. A remote attacker can inject and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Juniper Junos OS: 12.1X46-D10 - 12.1X46-D81, 12.3R10 - 12.3X48-D77, 14.1X53-D15 - 14.1X53-D50, 15.1R - 15.1X53-D496, 16.1R - 16.1R7, 16.2R1-S1 - 16.2R2, 17.1R1-S1 - 17.1R2, 17.2R1-S1 - 17.2R1, 17.3R1-S1 - 17.3R3, 17.4R1-S1 - 17.4R1, 18.1R1 - 18.1, 18.2R1-S3 - 18.2R1, 18.3R1-S1 - 18.3R1, 18.4R1-S1 - 18.4R1

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External links
https://kb.juniper.net/JSA10970

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.