High severity · published Feb 9, 2017
CVE-2016-9244
A BIG-IP virtual server configured with a Client SSL profile that has the non-default Session Tickets option enabled may leak up to 31 bytes of uninitialized memory
7.5
CVSS
74%
EPSS
No
On KEV
Description
A BIG-IP virtual server configured with a Client SSL profile that has the non-default Session Tickets option enabled may leak up to 31 bytes of uninitialized memory. A remote attacker may exploit this vulnerability to obtain Secure Sockets Layer (SSL) session IDs from other sessions. It is possible that other data from uninitialized memory may be returned as well.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)74.0% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BA
Big-ip Access Policy Manager · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BA
Big-ip Analytics · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BA
Big-ip Application Security Manager · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +3 more · source: NVD
BL
Big-ip Link Controller · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.4.0; 11.4.1; 11.5.0; 11.5.1; 11.5.2; 11.5.3; +7 more · source: NVD
BP
Big-ip Protocol Security Module · F5
11.4.0; 11.4.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-9244
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-9244
packetstormsecurity.com
http://packetstormsecurity.com/files/141017/Ticketbleed-F5-TLS-Information-Disclosure.html
www.securityfocus.com
http://www.securityfocus.com/bid/96143
Third Party Advisory
http://www.securitytracker.com/id/1037800
blog.filippo.io
https://blog.filippo.io/finding-ticketbleed/
filippo.io
https://filippo.io/Ticketbleed/
github.com
https://github.com/0x00string/oldays/blob/master/CVE-2016-9244.py
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