Wednesday , June 25 2025
juniper

Juniper warns of critical RCE bug in firewalls and switches

Juniper Networks released security updates to fix a critical vulnerability in its SRX Series firewalls and EX Series switches. The vulnerability allows remote code execution (RCE) without authentication.

A critical security flaw named CVE-2024-21591 was found in devices’ J-Web configuration interfaces. It can be exploited by unauthenticated attackers to gain root privileges or launch denial-of-service (DoS) attacks on unpatched devices.

WhatsApp banned on all US House of Representatives devices

The U.S. House of Representatives has banned congressional staff from using WhatsApp on government devices due to security concerns, as...
Read More
WhatsApp banned on all US House of Representatives devices

Kaspersky found “SparkKitty” Malware on Google Play, Apple App Store

Kaspersky found a new mobile malware dubbed SparkKitty in Google Play and Apple App Store apps, targeting Android and iOS....
Read More
Kaspersky found “SparkKitty” Malware on Google Play, Apple App Store

OWASP AI Testing Guide Launched to Uncover Vulns in AI Systems

OWASP has released its AI Testing Guide, a framework to help organizations find and fix vulnerabilities specific to AI systems....
Read More
OWASP AI Testing Guide Launched to Uncover Vulns in AI Systems

Axentec Launches Bangladesh’s First Locally Hosted Tier-4 Cloud Platform

In a major milestone for the country’s digital infrastructure, Axentec PLC has officially launched Axentec Cloud, Bangladesh’s first Tier-4 cloud...
Read More
Axentec Launches Bangladesh’s First Locally Hosted Tier-4 Cloud Platform

Hackers Bypass Gmail MFA With App-Specific Password Reuse

A hacking group reportedly linked to Russian government has been discovered using a new phishing method that bypasses two-factor authentication...
Read More
Hackers Bypass Gmail MFA With App-Specific Password Reuse

Russia detects first SuperCard malware attacks via NFC

Russian cybersecurity experts discovered the first local data theft attacks using a modified version of legitimate near field communication (NFC)...
Read More
Russia detects first SuperCard malware attacks via NFC

Income Property Investments exposes 170,000+ Individuals record

Cybersecurity researcher Jeremiah Fowler discovered an unsecured database with 170,360 records belonging to a real estate company. It contained personal...
Read More
Income Property Investments exposes 170,000+ Individuals record

ALERT (CVE: 2023-28771)
Zyxel Firewalls Under Attack via CVE-2023-28771 by 244 IPs

GreyNoise found attempts to exploit CVE-2023-28771, a vulnerability in Zyxel's IKE affecting UDP port 500. The attack centers around CVE-2023-28771,...
Read More
ALERT (CVE: 2023-28771)  Zyxel Firewalls Under Attack via CVE-2023-28771 by 244 IPs

CISA Flags Active Exploits in Apple iOS and TP-Link Routers

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has recently included two high-risk vulnerabilities in its Known Exploited Vulnerabilities (KEV)...
Read More
CISA Flags Active Exploits in Apple iOS and TP-Link Routers

10K Records Allegedly from Mac Cloud Provider’s Customers Leaked Online

SafetyDetectives’ Cybersecurity Team discovered a public post on a clear web forum in which a threat actor claimed to have...
Read More
10K Records Allegedly from Mac Cloud Provider’s Customers Leaked Online

“This issue is caused by use of an insecure function allowing an attacker to overwrite arbitrary memory,” the company explained in a security advisory published Wednesday.

Juniper stated that they have found no evidence of the vulnerability being exploited in the real world.
The list of vulnerable Junos OS versions affected by the SRX Series and EX Series J-Web bug is:

Junos OS versions earlier than 20.4R3-S9
Junos OS 21.2 versions earlier than 21.2R3-S7
Junos OS 21.3 versions earlier than 21.3R3-S5
Junos OS 21.4 versions earlier than 21.4R3-S5
Junos OS 22.1 versions earlier than 22.1R3-S4
Junos OS 22.2 versions earlier than 22.2R3-S3
Junos OS 22.3 versions earlier than 22.3R3-S2
Junos OS 22.4 versions earlier than 22.4R2-S2, 22.4R3

“The bug has been fixed in all subsequent Junos OS releases from 20.4R3-S9 onwards.”

Admins are advised to promptly update their security or upgrade JunOS to the latest version; alternatively, disable the J-Web interface to eliminate the attack possibility.

Another temporary workaround is to restrict J-Web access to only trusted network hosts until patches are deployed.

According to data from nonprofit internet security organization Shadowserver, more than 8,200 Juniper devices have their J-Web interfaces exposed online, most from South Korea (Shodan also tracks over 9,000).

In November, CISA warned about a Juniper exploit called Juniper pre-auth RCE. It is being used by hackers and consists of four bugs known as CVE-2023-36844, CVE-2023-36845, CVE-2023-36846, and CVE-2023-36847. This exploit affects Juniper’s SRX firewalls and EX switches.

Check Also

Paraguay 7.4 Million Citizen Records Leaked on Dark Web

Resecurity found 7.4 million records of Paraguayan citizens’ personal information leaked on the dark web …

Leave a Reply

Your email address will not be published. Required fields are marked *