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CVE-2022-22157— Junos OS: SRX Series: Traffic classification vulnerability when 'no-syn-check' is enabled

CVSS 7.2 · High EPSS 0.24% · P47
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I. Basic Information for CVE-2022-22157

Vulnerability Information
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Vulnerability Title
Junos OS: SRX Series: Traffic classification vulnerability when 'no-syn-check' is enabled
Source: NVD (National Vulnerability Database)
Vulnerability Description
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. JDPI incorrectly classifies out-of-state asymmetric TCP flows as the dynamic-application INCONCLUSIVE instead of UNKNOWN, 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-S9, 18.4R3-S9; 19.1 versions prior to 19.1R2-S3, 19.1R3-S6; 19.2 versions prior to 19.2R1-S7, 19.2R3-S3; 19.3 versions prior to 19.3R2-S6, 19.3R3-S2; 19.4 versions prior to 19.4R2-S5, 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 20.3R3; 20.4 versions prior to 20.4R2-S1, 20.4R3; 21.1 versions prior to 21.1R1-S1, 21.1R2. This issue does not affect Juniper Networks Junos OS versions prior to 18.4R1.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
授权机制不正确
Source: NVD (National Vulnerability Database)
Vulnerability Title
Juniper Networks Junos OS 安全特征问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Juniper Networks Junos OS是美国瞻博网络（Juniper Networks）公司的一套专用于该公司的硬件设备的网络操作系统。该操作系统提供了安全编程接口和Junos SDK。 Juniper Networks Junos OS 存在安全特征问题漏洞，该漏洞是由于在设备上启用no-syn-check时 SRX 系列服务网关上的流量分类问题而存在的。 JDPI 错误地将状态外非对称 TCP 流分类为动态应用程序 INCONCLUSIVE 而不是 UNKNOWN，后者更为宽松，导致防火墙
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Juniper NetworksJunos OS 18.4 ~ 18.4R2-S9, 18.4R3-S9 -
Juniper NetworksJunos OS unspecified ~ 18.4R1 -

II. Public POCs for CVE-2022-22157

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III. Intelligence Information for CVE-2022-22157

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Same Patch Batch · Juniper Networks · 2022-01-19 · 27 CVEs total

CVE-2022-221527.7 HIGHContrail Service Orchestration: Tenants able to see other tenants policies via REST API in
CVE-2022-221537.5 HIGHSRX Series and MX Series with SPC3: A high percentage of fragments might lead to high late
CVE-2022-221807.5 HIGHJunos OS: EX2300 Series, EX2300-MP Series, EX3400 Series: A slow memory leak due to proces
CVE-2022-221787.5 HIGHJunos OS: MX and SRX series: Flowd core observed if the SIP ALG is enabled and a specific
CVE-2022-221757.5 HIGHJunos OS: MX Series and SRX Series: The flowd daemon will crash if the SIP ALG is enabled
CVE-2022-221747.5 HIGHJunos OS: QFX5000 Series, EX4600: Device may run out of memory, causing traffic loss, upon
CVE-2022-221737.5 HIGHJunos OS: CRL failing to download causes a memory leak and ultimately a DoS
CVE-2022-221717.5 HIGHJunos OS: Specific packets over VXLAN cause FPC reset
CVE-2022-221707.5 HIGHJunos OS: Specific packets over VXLAN cause FPC memory leak and ultimately reset
CVE-2022-221617.5 HIGHJunos OS: MX104 might become unresponsive if the out-of-band management port receives a fl
CVE-2022-221597.5 HIGHJunos OS: An attacker sending crafted packets can cause a traffic and CPU Denial of Servic
CVE-2022-221767.4 HIGHJunos OS: In a scenario with dhcp-security and option-82 configured jdhcpd crashes upon re
CVE-2022-221637.4 HIGHJunos OS: jdhcpd crashes upon receipt of a specific DHCPv6 packet
CVE-2022-221627.3 HIGHJunos OS: A low privileged user can elevate their privileges to the ones of the highest pr
CVE-2022-221677.2 HIGHJunos OS: SRX Series: If no-syn-check is enabled, traffic classified as UNKNOWN gets permi
CVE-2022-221546.8 MEDIUMJunos Fusion: A Satellite Device can be controlled by rewiring it to a foreign AD causing
CVE-2022-221726.5 MEDIUMJunos OS and Junos OS Evolved: An l2cpd memory leak can occur when specific LLDP packets a
CVE-2022-221796.5 MEDIUMJunos OS: jdhcpd crashes upon receiving a specific DHCP packet
CVE-2022-221556.5 MEDIUMJunos OS: ACX5448: FPC memory leak due to IPv6 neighbor flaps
CVE-2022-221566.5 MEDIUMJunos OS: Certificate validation is skipped when fetching system scripts from a HTTPS URL

Showing top 20 of 27 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: Junos OS
Same vendor: Juniper Networks
Same weakness: CWE-863

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