F5F5:K11155549K11155549 : IPSEC vulnerability CVE-2019-14899
7.4 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.3 High
AI Score
Confidence
High
4.9 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:M/Au:S/C:P/I:P/A:P
0.0005 Low
EPSS
Percentile
13.9%
Security Advisory Description
A vulnerability was discovered in Linux, FreeBSD, OpenBSD, MacOS, iOS, and Android that allows a malicious access point, or an adjacent user, to determine if a connected user is using a VPN, make positive inferences about the websites they are visiting, and determine the correct sequence and acknowledgement numbers in use, allowing the bad actor to inject data into the TCP stream. This provides everything that is needed for an attacker to hijack active connections inside the VPN tunnel. (CVE-2019-14899)
Impact
There is no impact; F5 products are not affected by this vulnerability.
Related
7.4 High
CVSS3
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
7.3 High
AI Score
Confidence
High
4.9 Medium
CVSS2
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:A/AC:M/Au:S/C:P/I:P/A:P
0.0005 Low
EPSS
Percentile
13.9%