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ubuntucveUbuntu.comUB:CVE-2020-12691
HistoryMay 07, 2020 - 12:00 a.m.

CVE-2020-12691

2020-05-0700:00:00
ubuntu.com
ubuntu.com
17

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.015

Percentile

87.1%

An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0.
Any authenticated user can create an EC2 credential for themselves for a
project that they have a specified role on, and then perform an update to
the credential user and project, allowing them to masquerade as another
user. This potentially allows a malicious user to act as the admin on a
project another user has the admin role on, which can effectively grant
that user global admin privileges.

Bugs

Notes

Author Note
mdeslaur same fix as CVE-2020-12689
OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchkeystone< 2:13.0.4-0ubuntu1UNKNOWN
ubuntu16.04noarchkeystone< anyUNKNOWN

CVSS2

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:L/Au:S/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.015

Percentile

87.1%