CVE-2016-9244 EXPLOIT
7.5
HIGH · CVSS 3.0 · EPSS 74% (pctl 99)
Patch early
A public exploit exists.
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.
Scoring
| CVSS | 7.5 (HIGH, v3.0) |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| EPSS | 74% — more likely to be exploited than 99% of all CVEs |
| Weakness | CWE-200 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2017-02-09 |
| Last modified | 2026-06-17 |
Affected (10)
| Vendor | Product |
|---|---|
| f5 | big-ip access policy manager |
| f5 | big-ip advanced firewall manager |
| f5 | big-ip analytics |
| f5 | big-ip application acceleration manager |
| f5 | big-ip application security manager |
| f5 | big-ip global traffic manager |
| f5 | big-ip link controller |
| f5 | big-ip local traffic manager |
| f5 | big-ip policy enforcement manager |
| f5 | big-ip protocol security module |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | F5 BIG-IP 11.6 SSL Virtual Server - 'Ticketbleed' Memory Disclosure | 2017-02-14 |
| exploit-db | F5 BIG-IP SSL Virtual Server - 'Ticketbleed' Memory Disclosure | 2017-02-10 |
References
- http://packetstormsecurity.com/files/141017/Ticketbleed-F5-TLS-Information-Disclosure.html
- http://www.securityfocus.com/bid/96143
- http://www.securitytracker.com/id/1037800
- https://blog.filippo.io/finding-ticketbleed/
- https://filippo.io/Ticketbleed/
- https://github.com/0x00string/oldays/blob/master/CVE-2016-9244.py
- https://support.f5.com/csp/article/K05121675
- https://www.exploit-db.com/exploits/41298/
- http://packetstormsecurity.com/files/141017/Ticketbleed-F5-TLS-Information-Disclosure.html
- http://www.securityfocus.com/bid/96143
- http://www.securitytracker.com/id/1037800
- https://blog.filippo.io/finding-ticketbleed/
- https://filippo.io/Ticketbleed/
- https://github.com/0x00string/oldays/blob/master/CVE-2016-9244.py
- https://support.f5.com/csp/article/K05121675
- https://www.exploit-db.com/exploits/41298/
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