CVE-2019-10882 : Vulnerability Insights and Analysis

Netskope client buffer overflow vulnerability

Understanding CVE-2019-10882

This CVE involves a security flaw in Netskope client service versions v57 prior to 57.2.0.219 and v60 prior to 60.2.0.214, which operate under the NT\SYSTEM privilege, allowing network connections from the localhost.

What is CVE-2019-10882?

The vulnerability in the "doHandshakefromServer" function of Netskope client service versions v57 and v60 could lead to a stack-based buffer overflow, potentially exploited by local users to crash the service.

The Impact of CVE-2019-10882

CVSS Score: 5.5 (Medium Severity)
Attack Vector: Local
Availability Impact: High
The vulnerability could allow local users to crash the service, potentially causing further system impact.

Technical Details of CVE-2019-10882

The technical details of the vulnerability are as follows:

Vulnerability Description

The vulnerability arises from a stack-based buffer overflow in the "doHandshakefromServer" function of Netskope client service versions v57 and v60.

Affected Systems and Versions

Affected Versions: Netskope client versions 54
Unaffected Versions: Netskope client 57.2.0.219 and 60.2.0.214
Platforms: x86

Exploitation Mechanism

The vulnerability can be exploited by local users to intentionally crash the service, potentially leading to further impact on the system.

Mitigation and Prevention

To address CVE-2019-10882, follow these steps:

Immediate Steps to Take

Upgrade to Netskope client version 57.2.0.219 or 60.2.0.214
Apply the provided remediations

Long-Term Security Practices

Regularly update Netskope client to the latest versions
Implement network security measures to prevent unauthorized access

Patching and Updates

Remediations were applied in R62 onwards and retrospectively in golden releases R60.2.0.214 and R57.2.0.219