CVE-2020-5902

F5 Networks has released hotfixes for two vulnerabilities affecting its BIG-IP multi-purpose networking devices/modules, including a critical authentication bypass vulnerability (CVE-2023-46747) that could lead to unauthenticated remote code execution (RCE). About CVE-2023-46747 Discovered and reported by Thomas Hendrickson and Michael Weber of Praetorian Security, CVE-2023-46747 is a request smuggling bug in the Apache JServ Protocol (AJP) used by the vulnerable devices. “This vulnerability may allow an unauthenticated attacker with network access to the BIG-IP system … More →

Over the past several years, hackers have targeted public-facing network devices such as routers, VPN concentrators, and load balancers to gain a foothold into corporate networks. While finding remote code execution vulnerabilities in such devices is not uncommon, incidents where attackers were able to deploy malware on them that can survive restarts or firmware upgrades […]

Threat actors targeted a large software development company in Ukraine using the GoMet backdoor. Researchers from Cisco Talos discovered an uncommon piece of malware that was employed in an attack against a large Ukrainian software development company. The software development company produces software that is used by various state organizations in Ukraine. Researchers believe that […]

The 2022 Unit 42 Network Threat Trends Research Report includes an analysis of the CVEs most commonly exploited in 2021 and predictions for which CVEs attackers will likely focus on in the year to come.

The operators of the EnemyBot botnet added exploits for recently disclosed flaws in VMware, F5 BIG-IP, and Android systems. Operators behind the EnemyBot botnet are expanding the list of potential targets adding exploits for recently disclosed critical vulnerabilities in from VMware, F5 BIG-IP, and Android. The botnet was first discovered by Fortinet in March, the […]

We provide an overview of known cyberthreats related to Russia-Ukraine cyber activity, including DDoS attacks, HermeticWiper and defacement, and share recommendations for proactive defense.

US authorities warn critical infrastructure operators of the threat of cyberattacks orchestrated by Russia-linked threat actors. US Cybersecurity and Infrastructure Security Agency (CISA), the Federal Bureau of Investigation (FBI), and the National Security Agency (NSA) issued a joint alert to warn critical infrastructure operators about threats from Russian state-sponsored hackers. “This joint Cybersecurity Advisory (CSA)—authored […]

ESET researchers discovered an advanced persistent threat (APT) group, tracked as BackdoorDiplomacy, that is targeting diplomats across Africa and the Middle East. ESET researchers spotted a new state-sponsored group, dubbed BackdoorDiplomacy, that was behind a series of cyberattacks against Ministries of Foreign Affairs aimed at numerous African countries, the Middle East, Europe, and Asia. The group […]

The UK and US cybersecurity agencies have published a report detailing techniques used by Russia-linked cyberespionage group known APT29 (aka Cozy Bear). Today, UK NCSC and CISA-FBI-NSA cybersecurity agencies published a joint security advisory that warns organizations to patch systems immediately to mitigate the risk of attacks conducted by Russia-linked SVR group (aka APT29, Cozy Bear, and The Dukes)). The […]

Vulnerability intelligence-as-a-service outfit vFeed has compiled a list of the top 10 most exploited vulnerabilities from 2020, and among them are SMBGhost, Zerologon, and SIGRed. What is vFeed? vFeed analyzes a variety of vendor advisories and third-party sources, correlates the gathered info, and compiles and constantly updates a vulnerability and threat intelligence database/feed that SOC and security teams can use to prioritize the remediation of security issues. In most cases, securing and protecting companies networks … More →

A security researcher discovered a flaw in the F5 BIG-IP product that can be exploited to conduct denial-of-service (DoS) attacks. The security expert Nikita Abramov from Positive Technologies discovered a DoS vulnerability, tracked as CVE-2020-27716, that affects certain versions of F5 BIG-IP Access Policy Manager (APM). The F5 BIG-IP Access Policy Manager is a secure, flexible, […]

Attacks conducted by Iranian hackers against Israeli companies involved the deployment of ransomware and theft of information, threat intelligence company ClearSky reported last week.

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) and the Federal Bureau of Investigation (FBI) have issued an alert to warn that an Iranian threat actor recently accessed voter registration data.

The U.S. National Security Agency this week released an advisory containing information on 25 vulnerabilities that are being actively exploited or targeted by Chinese state-sponsored threat actors.

The US Cybersecurity and Infrastructure Security Agency (CISA) has released a list of 25 vulnerabilities Chinese state-sponsored hackers have been recently scanning for or have exploited in attacks. “Most of the vulnerabilities […] can be exploited to gain initial access to victim networks using products that are directly accessible from the Internet and act as gateways to internal networks. The majority of the products are either for remote access or for external web services, and … More →

The US National Security Agency (NSA) has shared the list of top 25 vulnerabilities exploited by Chinese state-sponsored hacking groups in attacks in the wild. The US National Security Agency (NSA) has published a report that includes details of the top 25 vulnerabilities that are currently being exploited by China-linked APT groups in attacks in the […]

US-based Arthur J. Gallagher (AJG) insurance giant disclosed a ransomware attack, the security breach took place on Saturday. US-based Arthur J. Gallagher (AJG) global insurance brokerage firm confirmed that it was his with a ransomware attack on Saturday, September 26. The company did not provide technical details about the attack, it is not clear how the ransomware […]

Threat actors affiliated with the Chinese Ministry of State Security (MSS) continue to target U.S. government agencies, the Cybersecurity and Infrastructure Security Agency (CISA) says in a new alert.

CISA published an advisory on China-linked groups targeting government agencies by exploiting flaws in Microsoft Exchange, Citrix, Pulse, and F5 systems. CISA published a security advisory warning of a wave of attacks carried out by China-linked APT groups affiliated with China’s Ministry of State Security. Chinese state-sponsored hackers have probed US government networks looking for vulnerable networking […]

We provide an analysis of CVE-2020-17496, proof of concept code to demonstrate the vulnerability and information on attacks we have observed.

A hacking group believed to be linked to the Iranian government was observed targeting a critical vulnerability that F5 Networks addressed in its BIG-IP application delivery controller (ADC) in early July.

Iran-linked APT group Pioneer Kitten is now trying to monetize its efforts by selling access to some of the networks it has hacked to other hackers. Iran-linked APT group Pioneer Kitten, also known as Fox Kitten or Parisite, is now trying to monetize its efforts by selling access to some of the networks it has […]

According to the FBI, Iranian hackers are actively attempting to exploit an unauthenticated RCE flaw, tracked as CVE-2020-5902, in F5 Big-IP ADC devices. The FBI is warning of Iranian hackers actively attempting to exploit an unauthenticated remote code execution flaw (CVE-2020-5902) affecting F5 Big-IP application delivery controller (ADC) devices. Early June, researchers at F5 Networks […]

For the latest discoveries in cyber research for the week of 27th July 2020, please download our Threat Intelligence Bulletin. Top Attacks and Breaches Check Point Research has found a long-term evolving phishing campaign turning to Google Cloud Storage and Google Cloud Functions to host phishing pages and steal users’ e-mail credentials. Telecom Argentina has […]

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an alert on Friday to warn organizations about the risk posed by a recently patched vulnerability affecting F5 Networks’ BIG-IP application delivery controller (ADC).

A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs free for you in your email box. Diebold Nixdorf warns of a wave of ATM black box attacks across Europe Ghost Squad Hackers defaced a second European Space Agency (ESA) site in a week Twitter reveals that […]

The U.S. CISA is warning of the active exploitation of the unauthenticated remote code execution CVE-2020-5902 vulnerability affecting F5 Big-IP ADC devices. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) issued an alert about the active exploitation of the unauthenticated remote code execution (RCE) CVE-2020-5902 vulnerability affecting F5 Big-IP ADC devices. The alert includes additional […]

Here’s an overview of some of last week’s most interesting news, articles and reviews: Attackers are probing Citrix controllers and gateways through recently patched flaws SANS ISC’s Dr. Johannes Ullrich spotted attackers attempting to exploit two of the Citrix vulnerabilities on his F5 BigIP honeypot (set up to flag CVE-2020-5902 exploitation attempts). Attackers are bypassing F5 BIG-IP RCE mitigation – you might want to patch after all Attackers are bypassing a mitigation for the BIG-IP … More →

A new round of the weekly SecurityAffairs newsletter arrived! Every week the best security articles from Security Affairs free for you in your email box. CISA warns organizations of cyberattacks from the Tor network Cisco Talos discloses technicals details of Chrome, Firefox flaws Huawei faces 5G ban from Britishs 5G network within months Former Yahoo! […]

Earlier this week, Citrix released security updates for Citrix Application Delivery Controller (ADC), Citrix Gateway, and the Citrix SD-WAN WANOP appliance, and urged admins to apply them as soon as possible to reduce risk. At the time, there was no public attack code and no indication that any of the fixed flaws were getting actively exploited. On Thursday, though, SANS ISC’s Dr. Johannes Ullrich spotted attackers attempting to exploit two of the Citrix vulnerabilities on … More →

Researchers have found a way to bypass F5 Networks mitigation for the actively exploited BIG-IP vulnerability, and hackers already used it. Researchers have found a way to bypass one of the mitigations proposed by F5 Networks for the actively exploited BIG-IP vulnerability. Unfortunately, threat actors in the wild were already using the bypass technique before […]

Researchers have found a way to bypass one of the mitigations proposed by F5 Networks for the actively exploited BIG-IP vulnerability, but malicious hackers leveraged the bypass method before its public disclosure.

Attackers are bypassing a mitigation for the BIG-IP TMUI RCE vulnerability (CVE-2020-5902) originally provided by F5 Networks, NCC Group’s Research and Intelligence Fusion Team has discovered. On CVE-2020-5902 (K52145254) @TeamAresSec reported publicly at 18:24 the mitigation could be bypassed, we saw it used in the wild at 12:39 for the first time – upgrade don't mitigate – https://t.co/sSr4JIZwu3 pic.twitter.com/PMfG0rCpyQ — NCC Group Infosec (@NCCGroupInfosec) July 7, 2020 “Early data made available to us, as of … More →

Hackers continue to exploit the recently patched BIG-IP security flaw and they have plenty of potential targets as researchers have identified thousands of vulnerable systems.

For the latest discoveries in cyber research for the week of 6th July 2020, please download our Threat Intelligence Bulletin. Top Attacks and Breaches Roblox, a multiplayer game platform, has suffered a data breach in which more than 1,800 user profiles were defaced with messages in support of Donald Trump’s reelection campaign, and their avatars’ […]

Attackers are actively trying to exploit CVE-2020-5902, a critical vulnerability affecting F5 Networks‘ BIG-IP multi-purpose networking devices, to install coin-miners, IoT malware, or to scrape administrator credentials from the hacked devices. About CVE-2020-5902 CVE-2020-5902 is a critical remote code execution vulnerability in the configuration interface (aka Traffic Management User Interface – TMUI) of BIG-IP devices used by some of the world’s biggest companies. It was unearthed along with CVE-2020-5903, a less critical XSS vulnerability that … More →

Hackers have already started exploiting a recently patched vulnerability affecting F5 Networks’ BIG-IP application delivery controller (ADC).

Attackers are already attempting to exploit the recently fixed bug in F5 Networks BIG-IP product, security experts warn. A few days after the disclosure of the vulnerability in the F5 Networks BIG-IP product threat actors started exploiting it in attacks in the wild. F5 Networks has recently addressed a critical remote code execution (RCE) vulnerability, tracked […]

F5 Networks has published a security advisory warning customers to patch a critical flaw in BIG-IP product that is very likely to be exploited. F5 Networks has addressed a critical remote code execution (RCE) vulnerability, tracked as CVE-2020-5902, that resides in undisclosed pages of Traffic Management User Interface (TMUI) of the BIG-IP product. “This vulnerability allows for […]

Critical and high-severity vulnerabilities discovered by researchers in F5 Networks’ BIG-IP application delivery controller (ADC) allow a remote attacker to take complete control of the targeted system.