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 imperativeWatch 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

2021 Thales access management index: Global edition

The challenges of trusted access in a cloud-first world

Free download

Transforming higher education for the digital era

The future is yours

Free download

Building a cloud-native, hybrid-multi cloud infrastructure

Get ready for hybrid-multi cloud databases, AI, and machine learning workloads

Free download

The next biggest shopping destination is the cloud

Know why retail businesses must move to the cloud

Free Download

Recommended

Marsh McLennan reveals its cyber risk analytics center
risk management

Marsh McLennan reveals its cyber risk analytics center

15 Oct 2021
MirrorBlast phishing campaign targets financial companies
phishing

MirrorBlast phishing campaign targets financial companies

15 Oct 2021
£100 contactless payment limit could place shoppers at risk, warn industry experts
Policy & legislation

£100 contactless payment limit could place shoppers at risk, warn industry experts

15 Oct 2021
Hackers used MSHTML exploit a week before patches were ready
zero-day exploit

Hackers used MSHTML exploit a week before patches were ready

14 Oct 2021

Most Popular

Best Linux distros 2021
operating systems

Best Linux distros 2021

11 Oct 2021
Apple MacBook Pro 15in vs Dell XPS 15: Clash of the titans
Laptops

Apple MacBook Pro 15in vs Dell XPS 15: Clash of the titans

11 Oct 2021
Supply chain breaches impacted 97% of firms in the past year
supply chain management (SCM)

Supply chain breaches impacted 97% of firms in the past year

12 Oct 2021