Security News > 2024 > January > Juniper warns of critical RCE bug in its firewalls and switches

Juniper warns of critical RCE bug in its firewalls and switches
2024-01-12 17:36

Juniper Networks has released security updates to fix a critical pre-auth remote code execution vulnerability in its SRX Series firewalls and EX Series switches.

CISA also warned in November of a Juniper pre-auth RCE exploit used in the wild, chaining four bugs tracked as CVE-2023-36844, CVE-2023-36845, CVE-2023-36846, and CVE-2023-36847 and impacted the company's SRX firewalls and EX switches.

The alert came months after ShadowServer detected the first exploitation attempts on August 25, one week after Juniper released patches and as soon as watchTowr Labs released a proof-of-concept exploit.

Sophos backports RCE fix after attacks on unsupported firewalls.

CISA warns of actively exploited Juniper pre-auth RCE exploit chain.

Ivanti warns critical EPM bug lets hackers hijack enrolled devices.


News URL

https://www.bleepingcomputer.com/news/security/juniper-warns-of-critical-rce-bug-in-its-firewalls-and-switches/

Related Vulnerability

DATE CVE VULNERABILITY TITLE RISK
2023-08-17 CVE-2023-36847 Missing Authentication for Critical Function vulnerability in Juniper Junos
A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to installAppPackage.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain part of the file system, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on EX Series: * All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S4; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S1; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3.
network
low complexity
juniper CWE-306
5.3
2023-08-17 CVE-2023-36846 Missing Authentication for Critical Function vulnerability in Juniper Junos
A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn't require authentication an attacker is able to upload arbitrary files via J-Web, leading to a loss of integrity for a certain  part of the file system, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on SRX Series: * All versions prior to 20.4R3-S8; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S6; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S3; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3; * 22.4 versions prior to 22.4R2-S1, 22.4R3.
network
low complexity
juniper CWE-306
5.3
2023-08-17 CVE-2023-36845 Unspecified vulnerability in Juniper Junos
A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series and SRX Series allows an unauthenticated, network-based attacker to remotely execute code. Using a crafted request which sets the variable PHPRC an attacker is able to modify the PHP execution environment allowing the injection und execution of code. This issue affects Juniper Networks Junos OS on EX Series and SRX Series: * All versions prior to 20.4R3-S9; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S7; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S4; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R2-S2, 22.3R3-S1; * 22.4 versions prior to 22.4R2-S1, 22.4R3; * 23.2 versions prior to 23.2R1-S1, 23.2R2.
network
low complexity
juniper
critical
9.8
2023-08-17 CVE-2023-36844 Unspecified vulnerability in Juniper Junos
A PHP External Variable Modification vulnerability in J-Web of Juniper Networks Junos OS on EX Series allows an unauthenticated, network-based attacker to control certain, important environment variables. Using a crafted request an attacker is able to modify certain PHP environment variables leading to partial loss of integrity, which may allow chaining to other vulnerabilities. This issue affects Juniper Networks Junos OS on EX Series: * All versions prior to 20.4R3-S9; * 21.1 versions 21.1R1 and later; * 21.2 versions prior to 21.2R3-S7; * 21.3 versions prior to 21.3R3-S5; * 21.4 versions prior to 21.4R3-S5; * 22.1 versions prior to 22.1R3-S4; * 22.2 versions prior to 22.2R3-S2; * 22.3 versions prior to 22.3R3-S1; * 22.4 versions prior to 22.4R2-S2, 22.4R3; * 23.2 versions prior to 23.2R1-S1, 23.2R2.
network
low complexity
juniper
5.3

Related vendor

VENDOR LAST 12M #/PRODUCTS LOW MEDIUM HIGH CRITICAL TOTAL VULNS
Juniper 33 0 325 328 54 707