CVE-2023-40623 : Security Advisory and Response
Learn about CVE-2023-40623, a medium-severity vulnerability in SAP BusinessObjects Suite (Installer) allowing attackers to delete operating system files and compromise system availability.
A detailed overview of CVE-2023-40623 focusing on the vulnerability in SAP BusinessObjects Suite (Installer).
Understanding CVE-2023-40623
This CVE highlights a security issue in SAP BusinessObjects Suite (Installer) versions 420 and 430, allowing a network-based attacker to manipulate directories and compromise system availability.
What is CVE-2023-40623?
The vulnerability in SAP BusinessObjects Suite (Installer) versions 420 and 430 enables an attacker within the network to create a directory under the temporary directory and link it to the operating system files. Successful exploitation results in the deletion of all operating system files, impacting integrity and compromising system availability.
The Impact of CVE-2023-40623
The severity of this CVE is rated as MEDIUM with a base score of 6.2. The attack complexity is considered HIGH, with a HIGH impact on availability. Although there is no impact on confidentiality, the integrity and availability of the system are significantly compromised.
Technical Details of CVE-2023-40623
A deeper dive into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability arises due to insecure operations on Windows Junction/Mount Points, tagged with CWE-1386. Attackers can exploit this flaw to delete critical operating files and disrupt system availability.
Affected Systems and Versions
SAP BusinessObjects Suite (Installer) versions 420 and 430 are confirmed to be affected by this exploit.
Exploitation Mechanism
Attackers with low privileges can create malicious directories linked to crucial system files, leading to the deletion of these files upon successful exploitation.
Mitigation and Prevention
Recommendations to mitigate and prevent the risks associated with CVE-2023-40623.
Immediate Steps to Take
- Update to the latest patched versions of SAP BusinessObjects Suite to eliminate the vulnerability.
- Restrict network access to critical systems to prevent unauthorized directory manipulations.
Long-Term Security Practices
- Regularly monitor directory structures for anomalies and unauthorized changes.
- Conduct security awareness training to educate employees on the risks associated with directory manipulation attacks.
Patching and Updates
Stay informed about security patches and updates provided by SAP to address CVE-2023-40623 and other known vulnerabilities.