Cloud Vulnerability DB
An open project to list all known cloud vulnerabilities and Cloud Service Provider security issues
Vulnerability DatabaseCVE-2023-32560
CVE-2023-32560:
Ivanti Avalanche vulnerability analysis and mitigation
Overview
CVE-2023-32560 represents two critical stack-based buffer overflow vulnerabilities discovered in Ivanti Avalanche, an enterprise mobility management solution used by 30,000 organizations. The vulnerability was discovered by Tenable researchers in April 2023 and affects WLAvanacheServer.exe version 6.4.0 and older. With a CVSS score of 9.8 (Critical), this vulnerability allows unauthenticated remote attackers to potentially execute arbitrary code or cause service disruption (Hacker News, Arctic Wolf).
Technical details
The vulnerability stems from stack-based buffer overflow conditions that occur when processing specific data types in the Wavelink Avalanche Manager. An unauthenticated remote attacker can trigger these conditions by sending specially crafted messages containing either a long hex string or a long type 9 item that exceeds the buffer's capacity. The vulnerability has been assigned a critical CVSS v3.1 base score of 9.8 (AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H), indicating the highest severity level (Help Net Security, NVD).
Impact
The successful exploitation of CVE-2023-32560 could allow attackers to achieve arbitrary code execution with elevated privileges or cause system crashes, potentially leading to service disruption. Given that Ivanti Avalanche is an enterprise mobility management solution used by 30,000 organizations, the potential impact of this vulnerability is significant (Hacker News).
Mitigation and workarounds
Ivanti has addressed these vulnerabilities by releasing version 6.4.1.207 of Avalanche on August 3, 2023. This update not only fixes CVE-2023-32560 but also addresses additional remote code execution and authentication bypass vulnerabilities (CVE-2023-32561 through CVE-2023-32566). Organizations are strongly advised to upgrade to this latest version to mitigate the risk (Help Net Security, Arctic Wolf).
Additional resources
Source: This report was generated using AI
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