CVE-2018-1124 : Exploit Details and Defense Strategies

A vulnerability in procps-ng prior to version 3.3.15 could allow a local attacker to execute arbitrary code, potentially leading to crashes or privilege escalation.

Understanding CVE-2018-1124

This CVE entry describes a specific security issue in the procps-ng package.

What is CVE-2018-1124?

The file2strvec function in procps-ng before version 3.3.15 is susceptible to multiple integer overflows, resulting in heap corruption. This flaw enables a local attacker to manipulate procfs entries, potentially causing system crashes or executing arbitrary code within proc utilities.

The Impact of CVE-2018-1124

The vulnerability has a CVSS base score of 7.3, indicating a high severity level. The impact includes high confidentiality, integrity, and availability risks, with low privileges required for exploitation.

Technical Details of CVE-2018-1124

This section delves into the technical aspects of the CVE.

Vulnerability Description

The file2strvec function in procps-ng before version 3.3.15 suffers from integer overflows, leading to heap corruption and potential code execution by local attackers.

Affected Systems and Versions

Product: procps-ng
Vendor: [UNKNOWN]
Versions Affected: procps-ng 3.3.15

Exploitation Mechanism

The vulnerability can be exploited by a local attacker with the ability to create entries in procfs by launching processes, potentially resulting in crashes or arbitrary code execution.

Mitigation and Prevention

Protecting systems from CVE-2018-1124 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update procps-ng to version 3.3.15 or later to mitigate the vulnerability.
Monitor for any unusual system behavior that could indicate exploitation.

Long-Term Security Practices

Implement the principle of least privilege to restrict access rights for users and processes.
Regularly audit and patch software to address known vulnerabilities.
Educate users on safe computing practices to prevent unauthorized system access.

Patching and Updates

Apply security patches provided by the vendor to address the vulnerability and enhance system security.