Integer overflow in Microsoft products - CVE-2015-1635
Published: January 11, 2023
Vulnerability identifier: #VU71091
CSH Severity: Critical
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2015-1635
CWE-ID: CWE-190
Exploitation vector: Remote access
Exploit availability:
The vulnerability is being exploited in the wild
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to integer overflow within the UlAdjustRangeToContentSize() function within HTTP.sys driver when handling HTTP requests. A remote attacker can a specially crafted HTTP request to the affected web server, trigger an integer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Affected software
Microsoft Windows
Windows Server
Microsoft Internet Information Services (IIS)
Windows Server
Microsoft Internet Information Services (IIS)
How to mitigate CVE-2015-1635
Install updates from vendor's website.
Links to Public Exploits and PoC-codes
- Exploit #8728 - Microsoft Windows - 'HTTP.sys' HTTP Request Parsing Denial of Service (MS15-034) (January 11, 2023)
- Exploit #8729 - Microsoft Windows - 'HTTP.sys' PoC (MS15-034) (January 11, 2023)
- Exploit #8726 - MS15-034 HTTP Protocol Stack Request Handling HTTP.SYS Memory Information Disclosure (January 11, 2023)
- Exploit #8727 - MS15-034 HTTP Protocol Stack Request Handling Denial-of-Service (January 11, 2023)
External References
- http://packetstormsecurity.com/files/131463/Microsoft-Windows-HTTP.sys-Proof-Of-Concept.html
- http://www.osvdb.org/120629
- http://www.securityfocus.com/bid/74013
- http://www.securitytracker.com/id/1032109
- https://docs.microsoft.com/en-us/security-updates/securitybulletins/2015/ms15-034
- https://www.exploit-db.com/exploits/36773/
- https://www.exploit-db.com/exploits/36776/