CVE-2011-3253: Infoleak
CalDAV in Apple iOS before 5 does not validate X.509 certificates for SSL sessions, which allows man-in-the-middle attackers to spoof calendar servers and obtain sensitive information via an arbitrary certificate.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2011-3253?
The severity of CVE-2011-3253 is considered to be moderate as it allows man-in-the-middle attacks on users without proper SSL certificate validation.
How do I fix CVE-2011-3253?
To fix CVE-2011-3253, upgrade your iOS to version 5 or later where this vulnerability has been addressed.
What versions of Apple iOS are affected by CVE-2011-3253?
CVE-2011-3253 affects Apple iOS versions prior to 5, including 3.0 through 4.3.5.
What type of attack is possible with CVE-2011-3253?
CVE-2011-3253 enables man-in-the-middle attacks, allowing attackers to spoof calendar servers and intercept sensitive information.
What security measures can be taken if I cannot upgrade from a vulnerable version affected by CVE-2011-3253?
If you cannot upgrade, avoid using unsecured networks and ensure all calendar server connections use trusted sources with valid certificates.