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Scrape Timestamp (UTC): 2025-03-20 13:53:29.857
Source: https://thehackernews.com/2025/03/veeam-and-ibm-release-patches-for-high.html
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Veeam and IBM Release Patches for High-Risk Flaws in Backup and AIX Systems. Veeam has released security updates to address a critical security flaw impacting its Backup & Replication software that could lead to remote code execution. The vulnerability, tracked as CVE-2025-23120, carries a CVSS score of 9.9 out of 10.0. It affects 12.3.0.310 and all earlier version 12 builds. "A vulnerability allowing remote code execution (RCE) by authenticated domain users," the company said in an advisory released Wednesday. Security researcher Piotr Bazydlo of watchTowr has been credited with discovering and reporting the flaw, which has been resolved in version 12.3.1 (build 12.3.1.1139). According to Bazydlo and researcher Sina Kheirkhah, CVE-2025-23120 stems from Veeam's inconsistent handling of deserialization mechanism, causing an allowlisted class that can be deserialized to pave the way for an inner deserialization that implements a blocklist-based approach to prevent deserialization of data deemed risky by the company. This also means that a threat actor could leverage a deserialization gadget missing from the blocklist – namely, Veeam.Backup.EsxManager.xmlFrameworkDs and Veeam.Backup.Core.BackupSummary – to achieve remote code execution. "These vulnerabilities can be exploited by any user who belongs to the local users group on the Windows host of your Veeam server," the researchers said. "Better yet - if you have joined your server to the domain, these vulnerabilities can be exploited by any domain user." The patch introduced by Veeam adds the two gadgets to the existing blocklist, meaning the solution could once again be rendered susceptible to similar risks if other feasible deserialization gadgets are discovered. The development comes as IBM has shipped fixes to remediate two critical bugs in its AIX operating system that could permit command execution. The list of shortcomings, which impact AIX versions 7.2 and 7.3, is below - While there is no evidence that any of these critical flaws have been exploited in the wild, users are advised to move quickly to apply the necessary patches to secure against potential threats.
Daily Brief Summary
Veeam has issued security updates for a critical flaw in its Backup & Replication software, capable of remote code execution.
The vulnerability, identified as CVE-2025-23120 with a CVSS score of 9.9, affects versions up to 12.3.0.310.
The flaw was discovered by security researcher Piotr Bazydlo, and is due to improper handling in the deserialization process in Veeam's software.
IBM has concurrently released patches for two critical vulnerabilities in its AIX operating systems that could allow command execution.
Both Veeam and IBM have advised users to apply these patches urgently to mitigate potential exploitation risks.
No evidence currently suggests these flaws have been exploited in the wild, but the severity of the risks they pose necessitates immediate action.