CVE-2011-0228
The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (6.33%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
The Data Security component in Apple iOS before 4.2.10 and 4.3.x before 4.3.5 does not check the basicConstraints parameter during validation of X.509 certificate chains, which allows man-in-the-middle attackers to spoof an SSL server by using a non-CA certificate to sign a certificate for an arbitrary domain.
- CVSS 2.0
- 7.5 HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
- EPSS
- 6.33% probability · 93th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-20
- Affected
- apple/iphone os
- Source
- product-security@apple.com
References
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00004.htmlVendor Advisory
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00005.htmlVendor Advisory
- http://secunia.com/advisories/45369Vendor Advisory
- http://securityreason.com/securityalert/8361
- http://securitytracker.com/id?1025837
- http://support.apple.com/kb/HT4824
- http://support.apple.com/kb/HT4825Vendor Advisory
- http://www.securityfocus.com/archive/1/518982/100/0/threaded
- http://www.securityfocus.com/bid/48877
- https://www.trustwave.com/spiderlabs/advisories/TWSL2011-007.txt
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00004.htmlVendor Advisory
- http://lists.apple.com/archives/security-announce/2011//Jul/msg00005.htmlVendor Advisory
- http://secunia.com/advisories/45369Vendor Advisory
- http://securityreason.com/securityalert/8361
- http://securitytracker.com/id?1025837
- http://support.apple.com/kb/HT4824
- http://support.apple.com/kb/HT4825Vendor Advisory
- http://www.securityfocus.com/archive/1/518982/100/0/threaded
- http://www.securityfocus.com/bid/48877
- https://www.trustwave.com/spiderlabs/advisories/TWSL2011-007.txt
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.