As if two Ivanti vulnerabilities under exploit weren’t bad enough, now there are 3

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Mass exploitation began over the weekend for yet another critical vulnerability in widely used VPN software sold by Ivanti, as hackers already targeting two previous vulnerabilities diversified, researchers said Monday.

The new vulnerability, tracked as CVE-2024-21893, is what’s known as a server-side request forgery. Ivanti disclosed it on January 22, along with a separate vulnerability that so far has shown no signs of being exploited. Last Wednesday, nine days later, Ivanti said CVE-2024-21893 was under active exploitation, aggravating an already chaotic few weeks. All of the vulnerabilities affect Ivanti’s Connect Secure and Policy Secure VPN products.

A tarnished reputation and battered security professionals

The new vulnerability came to light as two other vulnerabilities were already under mass exploitation, mostly by a hacking group researchers have said is backed by the Chinese government. Ivanti provided mitigation guidance for the two vulnerabilities on January 11, and released a proper patch last week. The Cybersecurity and Infrastructure Security Agency, meanwhile, mandated all federal agencies under its authority disconnect Ivanti VPN products from the Internet until they are rebuilt from scratch and running the latest software version.

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