Fortinet firewall vulnerability could give hackers full control

The FBI has issued multiple warnings of hackers using flaws in Fortinet products

Security researchers have discovered a vulnerability in the Fortinet FortiWeb firewall that could let an attacker take full control of the security device. This vulnerability, assigned CVE-2021-22123 and a CVSSv3 score of 7.4, is highly dangerous. 

According to Andrey Medov, the researcher at Positive Technologies who discovered the bug, a command injection vulnerability exists in the FortiWeb management interface that may allow authenticated remote attackers to execute arbitrary commands in the system via the SAML server configuration page. Executing commands with maximum privileges will give the attacker full control over the server. 

“If, as a result of incorrect configuration, the firewall administration interface is available on the Internet, and the product itself is not updated to the latest versions, then the combination of CVE-2021-22123 and CVE-2020-29015 that Positive Technologies discovered earlier may allow an attacker to penetrate the internal network,” he said.

The vendor issued a security advisory patching the flaw last month. To fix the vulnerability, update FortiWeb 6.3.7 (and earlier), 6.2.3 (and earlier), 6.1.x, 6.0.x, or 5.9.x to versions 6.3.8 or 6.2.4, depending on the build used. 

The patch comes after an FBI warning last month where an APT group exploited a Fortigate appliance to access a web server hosting the domain for a US municipal government.

Related Resource

The secure cloud configuration imperative

The central role of cloud security posture management

The secure cloud configuration imperativeDownload now

"The APT actors likely created an account with the username 'elie' to further enable malicious activity on the network," according to the Feds.

While the FBI did not say which local government was hacked, it has issued multiple warnings of hackers using flaws in Fortinet products.

“The FBI and the Cybersecurity and Infrastructure Security Agency (CISA) previously warned in April 2021 that APT actors had gained access to devices on ports 4443, 8443, and 10443 for Fortinet FortiOS CVE-2018-13379, and enumerated devices for FortiOS CVE-2020- 12812 and FortiOS CVE-2019-5591,” the flash notice read.

The FBI added that APT actors can leverage their access to conduct data exfiltration, data encryption, or other malicious activity. 

“The APT actors are actively targeting a broad range of victims across multiple sectors, indicating the activity is focused on exploiting vulnerabilities rather than targeted at specific sectors,” the FBI warned.

Organizations using these products should update them as soon as possible.

Featured Resources

B2B under quarantine

Key B2C e-commerce features B2B need to adopt to survive

Download now

The top three IT pains of the new reality and how to solve them

Driving more resiliency with unified operations and service management

Download now

The five essentials from your endpoint security partner

Empower your MSP business to operate efficiently

Download now

How fashion retailers are redesigning their digital future

Fashion retail guide

Download now

Recommended

How to use machine learning and AI in cyber security
Security

How to use machine learning and AI in cyber security

30 Jul 2021
Chipotle’s marketing email hacked to send phishing emails
phishing

Chipotle’s marketing email hacked to send phishing emails

29 Jul 2021
The top 12 password-cracking techniques used by hackers
Security

The top 12 password-cracking techniques used by hackers

29 Jul 2021
Colonial Pipeline hack spurred copycat attacks on other oil and gas companies
hacking

Colonial Pipeline hack spurred copycat attacks on other oil and gas companies

29 Jul 2021

Most Popular

The benefits of workload optimisation
Sponsored

The benefits of workload optimisation

16 Jul 2021
RMIT to be first Australian university to implement AWS supercomputing facility
high-performance computing (HPC)

RMIT to be first Australian university to implement AWS supercomputing facility

28 Jul 2021
Samsung Galaxy S21 5G review: A rose-tinted experience
Mobile Phones

Samsung Galaxy S21 5G review: A rose-tinted experience

14 Jul 2021