SB2017051016 - Multiple vulnerabilities in Microsoft ASP.NET Core
Published: May 10, 2017 Updated: May 15, 2017
Security Bulletin ID
SB2017051016
Severity
Medium
Patch available
YES
Number of vulnerabilities
3
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 secuirty vulnerabilities.
1) Denial of service (CVE-ID: CVE-2017-0247)
The vulnerability allows a remote unauthenticated user to cause DoS condition on the target system.The weakness exists due to improper validation of user-input requests by ASP.NET Core. A remote attacker can send a specially crafted web request and cause the application to crash.
Successful exploitation of the vulnerability results in denial of service.
2) Privilege escalation (CVE-ID: CVE-2017-0249)
The vulnerability allows a remote unauthenticated attacker to gain elevated privileges on the target system.The weakness exists due to improper validation of user-input requests by ASP.NET Core. A remote attacker can send a specially crafted web request and gain elevated privileges.
3) Spoofing attack (CVE-ID: CVE-2017-0256)
The vulnerability allows a remote unauthenticated attacker to perform spoofing attack.The weakness exists due to improper validation of user-input requests by ASP.NET Core. A remote attacker can send a specially crafted web request and perform a spoofing attack to access the system.
Successful exploitation of the vulnerability may result in unauthorized access to entire database.
Remediation
Install update from vendor's website.