4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:N/I:P/A:N
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
6.8 Medium
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
59.4%
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.
www.openwall.com/lists/oss-security/2016/05/17/10
www.openwall.com/lists/oss-security/2016/05/17/11
www.securityfocus.com/bid/90728
bugs.launchpad.net/keystone/+bug/1577558
github.com/advisories/GHSA-f82m-w3p3-cgp3
github.com/openstack/keystone/commit/0d376025bae61bf5ee19d992c7f336b99ac69240
github.com/openstack/keystone/commit/ee1dc941042d1f71699971c5c30566af1b348572
nvd.nist.gov/vuln/detail/CVE-2016-4911
review.openstack.org/#/c/311886
security.openstack.org/ossa/OSSA-2016-008.html
4 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:S/C:N/I:P/A:N
4.3 Medium
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
6.8 Medium
AI Score
Confidence
Low
0.002 Low
EPSS
Percentile
59.4%