CVE-2017-15358 : Security Advisory and Response

Charles Proxy Settings suid binary in Charles Proxy before version 4.2.1 has a race condition vulnerability, allowing local users to elevate privileges by exploiting vectors related to the --self-repair option.

Understanding CVE-2017-15358

This CVE involves a privilege escalation vulnerability in Charles Proxy.

What is CVE-2017-15358?

The vulnerability in the Charles Proxy Settings suid binary allows local users to gain elevated privileges through specific vectors.

The Impact of CVE-2017-15358

The vulnerability enables local users to escalate their privileges, potentially leading to unauthorized access and control of the affected system.

Technical Details of CVE-2017-15358

This section provides more technical insights into the CVE.

Vulnerability Description

A race condition in the Charles Proxy Settings suid binary before version 4.2.1 permits local users to gain privileges via vectors related to the --self-repair option.

Affected Systems and Versions

Product: Charles Proxy
Vendor: N/A
Versions affected: Before 4.2.1

Exploitation Mechanism

The vulnerability can be exploited by local users through specific vectors associated with the --self-repair option.

Mitigation and Prevention

Protecting systems from CVE-2017-15358 is crucial to maintaining security.

Immediate Steps to Take

Update Charles Proxy to version 4.2.1 or later to mitigate the vulnerability.
Monitor system logs for any suspicious activities indicating privilege escalation attempts.

Long-Term Security Practices

Implement the principle of least privilege to restrict user access rights.
Regularly audit and review system configurations to identify and address security gaps.

Patching and Updates

Stay informed about security updates and patches released by Charles Proxy to address vulnerabilities like CVE-2017-15358.