High severity · published Jul 3, 2019
CVE-2019-6631
On BIG-IP 11.5.1-11.6.4, iRules performing HTTP header manipulation may cause an interruption to service when processing traffic handled by a Virtual Server with an associated…
7.5
CVSS
2.5%
EPSS
No
On KEV
Description
On BIG-IP 11.5.1-11.6.4, iRules performing HTTP header manipulation may cause an interruption to service when processing traffic handled by a Virtual Server with an associated HTTP profile, in specific circumstances, when the requests do not strictly conform to RFCs.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.5% · higher than 85% 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
11.5.2 through 11.6.4 · source: NVD
BA
Big-ip Advanced Firewall Manager · F5
11.5.2 through 11.6.4 · source: NVD
BA
Big-ip Analytics · F5
11.5.2 through 11.6.4 · source: NVD
BA
Big-ip Application Acceleration Manager · F5
11.5.2 through 11.6.4 · source: NVD
BA
Big-ip Application Security Manager · F5
11.5.2 through 11.6.4 · source: NVD
BD
Big-ip Domain Name System · F5
11.5.2 through 11.6.4 · source: NVD
BE
Big-ip Edge Gateway · F5
11.5.2 through 11.6.4 · source: NVD
BG
Big-ip Global Traffic Manager · F5
11.5.2 through 11.6.4 · source: NVD
BL
Big-ip Link Controller · F5
11.5.2 through 11.6.4 · source: NVD
BL
Big-ip Local Traffic Manager · F5
11.5.2 through 11.6.4 · source: NVD
BP
Big-ip Policy Enforcement Manager · F5
11.5.2 through 11.6.4 · source: NVD
BW
Big-ip Webaccelerator · F5
11.5.2 through 11.6.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-6631
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-6631
Broken Link
http://www.securityfocus.com/bid/109119
Vendor Advisory
https://support.f5.com/csp/article/K19501795
support.f5.com
https://support.f5.com/csp/article/K19501795?utm_source=f5support&%3Butm_medium=RSS
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