Critical Ivanti Authentication Bypass Bug Exploited in Wild
Vulnerabilities mentionedAll →
| CVE | Vulnerability | CVSS | EPSS | Flags | Affected | Exposure | Published |
|---|---|---|---|---|---|---|---|
| CVE-2024-7593 | Unauthenticated Admin Account Creation in Ivanti Virtual Traffic Manager CVE-2024-7593 is an authentication bypass (CWE-287, CWE-303) in Ivanti Virtual Traffic Manager (vTM), Ivanti's enterprise load-balancing and traffic-management product. An unauthenticated remote attacker can send crafted requests to the vulnerable management interface and create an administrator account of their choosing, effectively obtaining full administrative control. With admin access, an attacker can modify load-balancing and traffic-routing configurations and potentially pivot further into the networks the appliance serves. Any organization running an affected Ivanti vTM release is exposed; the affected version ranges are not specified in the available data, so administrators should consult Ivanti's advisory. Exploitation is confirmed in the wild (added to CISA KEV on 2024-09-24), EPSS assigns a 100% probability of exploitation within 30 days (top percentile), CVSS is not yet scored, no public proof-of-concept is known, and ransomware use is unknown. Do: Upgrade Virtual Traffic Manager to the fixed releases listed in Ivanti's security advisory for CVE-2024-7593; if patching is not immediately possible, follow vendor mitigations or discontinue use, as required under the CISA KEV listing (added 2024-09-24). In the meantime, restrict management-interface access to trusted networks and audit administrator accounts for unexpected or attacker-created admin entries. | 9.8 | 100% | KEV |
| moderateroughly 2,000-3,000 internet-exposed vTM instances (low thousands per public scans); total enterprise installs higher |
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A critical authentication bypass vulnerability in Ivanti Virtual Traffic Manager (vTM) has now been exploited by threat actors in the wild, according to the US Cybersecurity and Infrastructure Security Agency (CISA).
CISA added the bug to its long list of Known Exploited Vulnerabilities (KEV) on September 24, with federal agencies given until October 15 to patch it. However, Ivanti has yet to update its security advisory to reflect the new information.
The advisory, first published on August 12 and last modified on September 4, states: “We are not aware of any customers being exploited by this vulnerability at the time of disclosure. However, a Proof of Concept is publicly available, and we urge customers to upgrade to the latest patched version.”
It appears that those concerns have now been realized, although it’s unclear how widespread exploitation is. CISA said it is also currently unknown whether the flaw is being used in ransomware attacks.
Read more on Ivanti vulnerabilities: Ivanti Zero-Days Exploited by Multiple Actors Globally
The vulnerability in question, CVE-2024-7593, is given a CVSS score of 9.8, reflecting the fact it could enable authentication bypass and the creation of a new user with admin rights.
“Incorrect implementation of an authentication algorithm in Ivanti vTM other than versions 22.2R1 or 22.7R2 allows a remote unauthenticated attacker to bypass authentication of the admin panel,” the description read.
As well as patching the bug, Ivanti provided advice for customers on how to limit exploitability.
“Customers who have ensured their management interface is bound to an internal network or private IP address have significantly reduced their attack surface,” it noted. “It is industry best practice and advised by Ivanti in the network configuration guidance to restrict access to the management interface.”
Ivanti products are perennially targeted by threat actors, often as zero-days, especially in its gateway and VPN appliances and mobile device management software.
In just the first month of 2024, the vendor released patches for four vulnerabilities, two of which were exploited as zero-days by Chinese threat actors.
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