CVE-2021-31373: Junos OS: SRX Series: Persistent XSS vulnerability in J-Web
A persistent Cross-Site Scripting (XSS) vulnerability in Juniper Networks Junos OS on SRX Series, J-Web interface may allow a remote authenticated user to inject persistent and malicious scripts. An attacker can exploit this vulnerability to steal sensitive data and credentials from a web administration session, or hijack another user's active session to perform administrative actions. This issue affects: Juniper Networks Junos OS on SRX Series: 18.2 versions prior to 18.2R3-S8; 18.3 versions prior to 18.3R3-S5; 18.4 versions prior to 18.4R3-S8; 19.1 versions prior to 19.1R3-S5; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S3; 19.4 versions prior to 19.4R1-S4, 19.4R2-S4, 19.4R3-S3; 20.1 versions prior to 20.1R2-S2, 20.1R3; 20.2 versions prior to 20.2R3-S1; 20.3 versions prior to 20.3R2-S1, 20.3R3.
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Frequently Asked Questions
What is the severity of CVE-2021-31373?
CVE-2021-31373 is rated as high severity due to its potential to allow persistent Cross-Site Scripting (XSS) attacks.
How can I fix CVE-2021-31373?
To fix CVE-2021-31373, update your Junos OS to a version that addresses this vulnerability as specified in the vendor's security advisory.
What types of systems are affected by CVE-2021-31373?
CVE-2021-31373 affects Juniper Networks Junos OS on SRX Series devices specifically through the J-Web interface.
Can attackers exploit CVE-2021-31373 remotely?
Yes, an authenticated remote user can exploit CVE-2021-31373 to inject malicious scripts.
What impact could CVE-2021-31373 have on my system?
Exploitation of CVE-2021-31373 could lead to the theft of sensitive data and user credentials.