#VU24187 Cross-site scripting in Juniper Junos OS - CVE-2020-1607

Vulnerability identifier: #VU24187

Vulnerability risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N/E:U/U:Clear]

CVE-ID: CVE-2020-1607

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. A remote attacker can trick the victim to follow a specially crafted link 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 updates from vendor's website.

Vulnerable software versions

Juniper Junos OS: 12.3R10 - 12.3, 14.1X53-D15 - 14.1x53, 15.1R - 15.1, 16.1R - 16.1, 16.2R1-S1 - 16.2, 17.1R1-S1 - 17.1, 17.2R1-S1 - 17.2, 17.3R1-S1 - 17.3, 17.4R1-S1 - 17.4, 18.1R1 - 18.1, 18.2R1-S3 - 18.2, 18.3R1-S1 - 18.3, 18.4R1-S1 - 18.4, 19.1R - 19.1R1

---

External links
https://jvn.jp/en/jp/JVN21753370/index.html
https://kb.juniper.net/InfoCenter/index?page=content&id=JSA10986&actp=METADATA

---

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.