CVE-2009-1535 Auth bypass in n/a
Remote attackers can bypass WebDAV authentication in IIS to read, create, or modify protected files via crafted Unicode characters in the URI.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2009-1535?
CVE-2009-1535 is a high-severity authentication bypass vulnerability in Microsoft Internet Information Services, published on 10 Jun 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
The WebDAV extension in Microsoft Internet Information Services (IIS) 5.1 and 6.0 allows remote attackers to bypass URI-based protection mechanisms, and list folders or read, create, or modify files, via a %c0%af (Unicode / character) at an arbitrary position in the URI, as demonstrated by inserting %c0%af into a "/protected/" initial pathname component to bypass the password protection on the protected\ folder, aka "IIS 5.1 and 6.0 WebDAV Authentication Bypass Vulnerability," a different vulnerability than CVE-2009-1122.
Weakness: CWE-287
Which versions are affected by CVE-2009-1535?
It affects 1 product.
Products include Microsoft Internet Information Services.
How do I fix CVE-2009-1535?
No fix has been published for CVE-2009-1535 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2009-1535 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-1535 exists.
Public exploit code: 2 Metasploit modules and 2 Exploit-DB entries.
Other vulnerabilities in Microsoft Internet Information Services
- CVE-2017-7269 Microsoft Windows Server Buffer Overflow
- CVE-2010-3972 Memory corruption in n/a
- CVE-2008-4301 Other in n/a
- CVE-2007-2815 The "hit-highlighting" functionality in webhits.dll in Microsoft Internet Information Services (IIS) Web Server 5.0 only uses Windows NT ACL
- CVE-2003-0224 Buffer overflow in ssinc.dll for Microsoft Internet Information Services (IIS) 5.0 allows local users to execute arbitrary code via a web pa
Sources
Also known as CVE-2009-1676, GHSA-f2c7-qmx6-wq66.