Junos OS: SRX Series: If VPN compliance-check is configured an attacker can cause http-gk process crash
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 23.2R2-S7, 23.4R2-S8, 24.2R2-S4, 24.4R2-S4, 25.2R2
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
An Out-of-bounds Write vulnerability in the http-gatekeeper (http-gk) of Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause a Denial-of-Service (DoS). If an SRX Series device is configured for remote-access VPN with pre-logon compliance check, a network-based attacker sending specifically formatted requests can trigger an out of bounds write leading to an http-gk process crash. This crash leads to unavailability of all services depending on the [ system services web-management ] configuration (like J-Web, remote access VPN and firewall authentication) until the process automatically restarts. This issue affects Junos OS on SRX Series: • 23.2 versions before 23.2R2-S7, • 23.4 versions before 23.4R2-S8, • 24.2 versions before 24.2R2-S4, • 24.4 versions before 24.4R2-S4, • 25.2 versions before 25.2R2, • 25.4 versions before 25.4R1-S1, 25.4R2.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- Juniper Networks Junos OS
From 23.2 · fixed in 23.2R2-S7; From 23.4 · fixed in 23.4R2-S8; From 24.2 · fixed in 24.2R2-S4; From 24.4 · fixed in 24.4R2-S4; From 25.2 · fixed in 25.2R2