Home / vulnerabilities Debian Security Advisory 3398-1
Posted on 17 November 2015
Source : packetstormsecurity.org Link
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
- -------------------------------------------------------------------------
Debian Security Advisory DSA-3398-1 security@debian.org
https://www.debian.org/security/ Yves-Alexis Perez
November 16, 2015 https://www.debian.org/security/faq
- -------------------------------------------------------------------------
Package : strongswan
CVE ID : CVE-2015-8023
Tobias Brunner found an authentication bypass vulnerability in
strongSwan, an IKE/IPsec suite.
Due to insufficient validation of its local state the server
implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin
can be tricked into successfully concluding the authentication without
providing valid credentials.
It's possible to recognize such attacks by looking at the server logs.
The following log message would be seen during the client
authentication:
EAP method EAP_MSCHAPV2 succeeded, no MSK established
For the oldstable distribution (wheezy), this problem has been fixed
in version 4.5.2-1.5+deb7u8.
For the stable distribution (jessie), this problem has been fixed in
version 5.2.1-6+deb8u2.
For the testing distribution (stretch), this problem has been fixed
in version 5.3.3-3.
For the unstable distribution (sid), this problem has been fixed in
version 5.3.3-3.
We recommend that you upgrade your strongswan packages.
Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: https://www.debian.org/security/
Mailing list: debian-security-announce@lists.debian.org
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQEcBAEBCgAGBQJWSdZXAAoJEG3bU/KmdcClzmwIAKSxdiqejnrNE0GrLBxiuG9h
dTn/aRw0OaOrXUs/Gmi7fMy0ce0ZqoTm5tExVAh9PsuRGqgxMfjuPQs+jt8XEAGf
ZW7PeRQoej5XgIiMpoMM+Z1jNjgY2aTgccqS1kGWvRXdWycMKTHEFFVk5vHopuqv
iR5+kVX0OxLn043Iu77EmpBYqxIbVG8acHEOCgIfef80rNPaDksvwqV3I7swnAWx
t0ezoNZglHTCfOefcj7RRgEpcPL/7UIv3CVBmtw60E6P+//jXE6fmhjkf6B5BEjx
QZAMUiEqRtkjXil8xdDoJTVHJQ9UKXSGrTimZyrF7M0+JlpUvNzeB5ynaMh+OtQ=
=8xMJ
-----END PGP SIGNATURE-----
