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The Hacker News - Most Trusted Cyber Security and Computer Security Analysis: F5 BIG-IP

High Severity Vulnerabilities Reported in F5 BIG-IP and BIG-IQ Devices

High Severity Vulnerabilities Reported in F5 BIG-IP and BIG-IQ Devices

November 17, 2022Ravie Lakshmanan
Multiple security vulnerabilities have been disclosed in F5 BIG-IP and BIG-IQ devices that, if successfully exploited, to completely compromise affected systems. Cybersecurity firm Rapid7 said the  flaws  could be abused to remote access to the devices and defeat security constraints. The issues impact BIG-IP versions 13.x, 14.x, 15.x, 16.x, and 17.x, and BIG-IQ Centralized Management versions 7.x and 8.x. The two high-severity issues, which were reported to F5 on August 18, 2022, are as follows - CVE-2022-41622  (CVSS score: 8.8) - A cross-site request forgery ( CSRF ) vulnerability through iControl SOAP, leading to unauthenticated remote code execution. CVE-2022-41800  (CVSS score: 8.7) - An iControl REST vulnerability that could allow an authenticated user with an Administrator role to bypass  Appliance mode  restrictions. "By successfully exploiting the worst of the vulnerabilities (CVE-2022-41622), an attacker could gain persistent root access to the device's man
CISA Urges Organizations to Patch Actively Exploited F5 BIG-IP Vulnerability

CISA Urges Organizations to Patch Actively Exploited F5 BIG-IP Vulnerability

May 12, 2022Ravie Lakshmanan
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has  added  the recently disclosed F5 BIG-IP flaw to its  Known Exploited Vulnerabilities Catalog  following reports of  active abuse  in the wild. The flaw, assigned the identifier  CVE-2022-1388  (CVSS score: 9.8), concerns a  critical bug  in the BIG-IP iControl REST endpoint that provides an unauthenticated adversary with a method to execute arbitrary system commands. "An attacker can use this vulnerability to do just about anything they want to on the vulnerable server," Horizon3.ai  said  in a report. "This includes making configuration changes, stealing sensitive information and moving laterally within the target network." Patches and mitigations for the flaw were announced by F5 on May 4, but it has been  subjected  to  in-the-wild   exploitation  over the past week, with attackers attempting to install a web shell that grants backdoor access to the targeted systems. "Due to the ease
Researchers Develop RCE Exploit for the Latest F5 BIG-IP Vulnerability

Researchers Develop RCE Exploit for the Latest F5 BIG-IP Vulnerability

May 09, 2022Ravie Lakshmanan
Days after F5 released patches for a critical remote code execution vulnerability affecting its BIG-IP family of products, security researchers are warning that they were able to create an exploit for the shortcoming. Tracked  CVE-2022-1388  (CVSS score: 9.8), the flaw relates to an iControl REST authentication bypass that, if successfully exploited, could lead to remote code execution, allowing an attacker to gain initial access and take control of an affected system. This could range anywhere from deploying cryptocurrency miners to dropping web shells for follow-on attacks, such as information theft and ransomware. "We have reproduced the fresh CVE-2022-1388 in F5's BIG-IP," cybersecurity company Positive Technologies  said  in a tweet on Friday. "Patch ASAP!" The critical security vulnerability impacts the following versions of BIG-IP products - 16.1.0 - 16.1.2 15.1.0 - 15.1.5 14.1.0 - 14.1.4 13.1.0 - 13.1.4 12.1.0 - 12.1.6 11.6.1 - 11.6.5 Fixe
F5 BIG-IP Found Vulnerable to Kerberos KDC Spoofing Vulnerability

F5 BIG-IP Found Vulnerable to Kerberos KDC Spoofing Vulnerability

April 28, 2021Ravie Lakshmanan
Cybersecurity researchers on Wednesday disclosed a new bypass vulnerability (CVE-2021-23008) in the Kerberos Key Distribution Center (KDC) security feature impacting F5 Big-IP application delivery services. "The KDC Spoofing vulnerability allows an attacker to bypass the Kerberos authentication to Big-IP Access Policy Manager (APM), bypass security policies and gain unfettered access to sensitive workloads," Silverfort researchers Yaron Kassner and Rotem Zach said in a report. "In some cases this can be used to bypass authentication to the Big-IP admin console as well." Coinciding with the public disclosure, F5 Networks has released patches to address the weakness (CVE-2021-23008, CVSS score 8.1), with fixes introduced in BIG-IP APM versions 12.1.6, 13.1.4, 14.1.4, and 15.1.3. A similar patch for version 16.x is expected at a future date. "We recommend customers running 16.x check the security advisory to assess their exposure and get details on mitigati
Critical Pre-Auth RCE Flaw Found in F5 Big-IP Platform — Patch ASAP!

Critical Pre-Auth RCE Flaw Found in F5 Big-IP Platform — Patch ASAP!

March 11, 2021Ravie Lakshmanan
Application security company F5 Networks on Wednesday published an  advisory  warning of four critical vulnerabilities impacting multiple products that could result in a denial of service (DoS) attack and even unauthenticated remote code execution on target networks. The patches concern a total of seven related flaws (from CVE-2021-22986 through CVE-2021-22992),  two  of  which  were discovered and reported by Felix Wilhelm of Google Project Zero in December 2020. The four critical flaws affect BIG-IP versions 11.6 or 12.x and newer, with a critical pre-auth remote code execution (CVE-2021-22986) also affecting BIG-IQ versions 6.x and 7.x. F5 said it's not aware of any public exploitation of these issues. Successful exploitation of these vulnerabilities could lead to a full compromise of vulnerable systems, including the possibility of remote code execution as well as trigger a buffer overflow, leading to a DoS attack. Urging customers to update their BIG-IP and BIG-IQ deploy
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