CVE-2016-4911

The Fernet Token Provider in OpenStack Identity (Keystone) 9.0.x before 9.0.1 (mitaka) allows remote authenticated users to prevent revocation of a chain of tokens and bypass intended access restrictions by rescoping a token.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
4.3 MEDIUM
NETWORK
LOW
LOW
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 43%
VendorProductVersion
keystoneopenstack_identity
9.0.0.0:rc1
keystoneopenstack_identity
9.0.0.0:rc2
keystoneopenstack_identity
9.0.0.0:rc3
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
keystone
bullseye
2:18.0.0-3+deb11u1
fixed
jessie
not-affected
wheezy
not-affected
bookworm
2:22.0.0-2
fixed
sid
2:26.0.0-1
fixed
trixie
2:26.0.0-1
fixed
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
keystone
zesty
not-affected
yakkety
ignored
xenial
not-affected
wily
not-affected
trusty
dne
precise
not-affected
Common Weakness Enumeration
References
http://www.openwall.com/lists/oss-security/2016/05/17/10
http://www.openwall.com/lists/oss-security/2016/05/17/11
http://www.securityfocus.com/bid/90728
https://bugs.launchpad.net/keystone/+bug/1577558
https://review.openstack.org/#/c/311886/
https://security.openstack.org/ossa/OSSA-2016-008.html
http://www.openwall.com/lists/oss-security/2016/05/17/10
http://www.openwall.com/lists/oss-security/2016/05/17/11
http://www.securityfocus.com/bid/90728
https://bugs.launchpad.net/keystone/+bug/1577558
https://review.openstack.org/#/c/311886/
https://security.openstack.org/ossa/OSSA-2016-008.html