CVE-2022-22167

A traffic classification vulnerability in Juniper Networks Junos OS on the SRX Series Services Gateways may allow an attacker to bypass Juniper Deep Packet Inspection (JDPI) rules and access unauthorized networks or resources, when 'no-syn-check' is enabled on the device. While JDPI correctly classifies out-of-state asymmetric TCP flows as the dynamic-application UNKNOWN, this classification is not provided to the policy module properly and hence traffic continues to use the pre-id-default-policy, which is more permissive, causing the firewall to allow traffic to be forwarded that should have been denied. This issue only occurs when 'set security flow tcp-session no-syn-check' is configured on the device. This issue affects Juniper Networks Junos OS on SRX Series: 18.4 versions prior to 18.4R2-S10, 18.4R3-S10; 19.1 versions prior to 19.1R3-S8; 19.2 versions prior to 19.2R1-S8, 19.2R3-S4; 19.3 versions prior to 19.3R3-S3; 19.4 versions prior to 19.4R3-S5; 20.1 versions prior to 20.1R3-S1; 20.2 versions prior to 20.2R3-S2; 20.3 versions prior to 20.3R3-S1; 20.4 versions prior to 20.4R2-S2, 20.4R3; 21.1 versions prior to 21.1R2-S2, 21.1R3; 21.2 versions prior to 21.2R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.4R1.

• CWE-863

• https://kb.juniper.net/JSA11265Vendor Advisory
• https://kb.juniper.net/JSA11265Vendor Advisory

Published

Jan 19, 2022

Last Modified

Jun 17, 2026

Status

Modified

• Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2022-22161An Uncontrolled Resource Consumption vulnerability in the ke…7.5
• CVE-2022-22162A Generation of Error Message Containing Sensitive Informati…7.8
• CVE-2022-22163An Improper Input Validation vulnerability in the Juniper DH…6.5
• CVE-2022-22164An Improper Initialization vulnerability in Juniper Networks…5.3
• CVE-2022-22165Rejected reason: DO NOT USE THIS CANDIDATE NUMBER. ConsultID…
• CVE-2022-22166An Improper Validation of Specified Quantity in Input vulner…6.5
• CVE-2022-22168An Improper Validation of Specified Type of Input vulnerabil…6.5
• CVE-2022-22169An Improper Initialization vulnerability in the routing prot…5.9
• CVE-2022-2217Cross-site Scripting (XSS) - Generic in GitHub repository io…6.1
• CVE-2022-22170A Missing Release of Resource after Effective Lifetime vulne…7.5
• CVE-2022-22171An Improper Check for Unusual or Exceptional Conditions vuln…7.5
• CVE-2022-22172A Missing Release of Memory after Effective Lifetime vulnera…6.5