CVE-2015-8023

The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
5 UNKNOWN
NETWORK
LOW
AV:N/AC:L/Au:N/C:N/I:P/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 65%
VendorProductVersion
canonicalubuntu_linux
14.04
canonicalubuntu_linux
15.04
canonicalubuntu_linux
15.10
strongswanstrongswan
4.2.12
strongswanstrongswan
4.2.13
strongswanstrongswan
4.2.14
strongswanstrongswan
4.2.15
strongswanstrongswan
4.2.16
strongswanstrongswan
4.3.0
strongswanstrongswan
4.3.1
strongswanstrongswan
4.3.2
strongswanstrongswan
4.3.3
strongswanstrongswan
4.3.4
strongswanstrongswan
4.3.5
strongswanstrongswan
4.3.6
strongswanstrongswan
4.3.7
strongswanstrongswan
4.4.0
strongswanstrongswan
4.4.1
strongswanstrongswan
4.5.0
strongswanstrongswan
4.5.1
strongswanstrongswan
4.5.2
strongswanstrongswan
4.5.3
strongswanstrongswan
4.6.0
strongswanstrongswan
4.6.1
strongswanstrongswan
4.6.2
strongswanstrongswan
4.6.3
strongswanstrongswan
4.6.4
strongswanstrongswan
5.0.0
strongswanstrongswan
5.0.1
strongswanstrongswan
5.0.2
strongswanstrongswan
5.0.3
strongswanstrongswan
5.0.4
strongswanstrongswan
5.1.0
strongswanstrongswan
5.1.1
strongswanstrongswan
5.1.2
strongswanstrongswan
5.1.3
strongswanstrongswan
5.2.0
strongswanstrongswan
5.2.1
strongswanstrongswan
5.2.2
strongswanstrongswan
5.2.3
strongswanstrongswan
5.3.0
strongswanstrongswan
5.3.1
strongswanstrongswan
5.3.2
strongswanstrongswan
5.3.3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
strongswan
bullseye (security)
5.9.1-1+deb11u4
fixed
bullseye
5.9.1-1+deb11u4
fixed
bookworm
5.9.8-5+deb12u1
fixed
bookworm (security)
5.9.8-5+deb12u1
fixed
sid
5.9.13-2
fixed
trixie
5.9.13-2
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
strongswan
zesty
Fixed 5.1.2-0ubuntu7
released
yakkety
Fixed 5.1.2-0ubuntu7
released
xenial
Fixed 5.1.2-0ubuntu7
released
wily
Fixed 5.1.2-0ubuntu6.2
released
vivid
Fixed 5.1.2-0ubuntu5.3
released
trusty
Fixed 5.1.2-0ubuntu2.4
released
precise
ignored