Information Disclosure Vulnerability in BIG-IP by F5 Networks
CVE-2016-9244

7.5HIGH

Key Information:

Vendor

F5 Networks

Status
F5 Big-ip Ltm, Aam, Afm, Analytics, Apm, Asm, Gtm, Link Controller, Pem, Psm
Vendor
CVE Published:
9 February 2017

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 69%

What is CVE-2016-9244?

A vulnerability exists in the BIG-IP virtual server configured with a Client SSL profile utilizing the Session Tickets feature, which is not set to default settings. This issue allows a remote attacker to potentially access up to 31 bytes of uninitialized memory. Consequently, the attacker could retrieve sensitive information, including Secure Sockets Layer (SSL) session IDs from other active sessions. Additionally, other sensitive data that may reside in the uninitialized memory may also be exposed, creating serious security implications for affected systems.

Affected Version(s)

F5 BIG-IP LTM, AAM, AFM, Analytics, APM, ASM, GTM, Link Controller, PEM, PSM 11.6.1 before 11.6.1 HF1 and 12.1.x before 12.1.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

Ticketbleed
Created by EgeBalci

minion-ticket-bleed-plugin
Created by glestel

References

https://support.f5.com/csp/article/K05121675
x_refsource_CONFIRM
https://www.exploit-db.com/exploits/41298/
exploitx_refsource_EXPLOIT-DB
https://filippo.io/Ticketbleed/
x_refsource_MISC

EPSS Score

69% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.