CVE-2020-12692
published 2020-05-07CVE-2020-12692: An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can…
PriorityP425medium5.4CVSS 3.1
AVNACLPRLUINSUCLILAN
EPSS
0.70%
49.2th percentile
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
Affected
11 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| canonical | ubuntu_linux | — | — |
| debian | keystone | < keystone 2:17.0.0~rc2-1 (bookworm) | keystone 2:17.0.0~rc2-1 (bookworm) |
| openstack | keystone | < 15.0.1 | 15.0.1 |
| openstack | keystone | — | — |
| openstack | keystone | >= 0 < 2:17.0.0~rc2-1 | 2:17.0.0~rc2-1 |
| openstack | keystone | >= 0 < 2:17.0.0~rc2-1 | 2:17.0.0~rc2-1 |
| openstack | keystone | >= 0 < 2:17.0.0~rc2-1 | 2:17.0.0~rc2-1 |
| openstack | keystone | >= 0 < 2:17.0.0~rc2-1 | 2:17.0.0~rc2-1 |
| openstack | keystone | >= 0 < 15.0.1 | 15.0.1 |
| openstack | keystone | >= 0 < 2:13.0.4-0ubuntu1 | 2:13.0.4-0ubuntu1 |
| openstack | keystone | >= 16.0.0.0rc1 < 16.0.0 | 16.0.0 |
CVSS provenance
nvdv3.15.4MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
nvdv2.05.5MEDIUMAV:N/AC:L/Au:S/C:P/I:P/A:N
osv8.8HIGH
vendor_ubuntu8.8HIGH
vendor_debian5.4MEDIUM
vendor_redhat5.4MEDIUM
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GHSA
OpenStack Keystone does not check signature TTL of the EC2 credential auth method
ghsa·2022-05-24
CVE-2020-12692 [MEDIUM] CWE-311 OpenStack Keystone does not check signature TTL of the EC2 credential auth method
OpenStack Keystone does not check signature TTL of the EC2 credential auth method
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
OSV
OpenStack Keystone does not check signature TTL of the EC2 credential auth method
osv·2022-05-24
CVE-2020-12692 [MEDIUM] OpenStack Keystone does not check signature TTL of the EC2 credential auth method
OpenStack Keystone does not check signature TTL of the EC2 credential auth method
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
OSV
keystone vulnerabilities
osv·2020-09-01·CVSS 8.8
CVE-2020-12689 [HIGH] keystone vulnerabilities
keystone vulnerabilities
It was discovered that OpenStack Keystone incorrectly handled EC2
credentials. An authenticated attacker with a limited scope could possibly
create EC2 credentials with escalated permissions. (CVE-2020-12689,
CVE-2020-12691)
It was discovered that OpenStack Keystone incorrectly handled the list of
roles provided with OAuth1 access tokens. An authenticated user could
possibly end up with more role assignments than intended. (CVE-2020-12690)
It was discovered that OpenStack Keystone incorrectly handled EC2 signature
TTL checks. A remote attacker could possibly use this issue to reuse
Authorization headers. (CVE-2020-12692)
OSV
CVE-2020-12692: An issue was discovered in OpenStack Keystone before 15
osv·2020-05-07·CVSS 5.4
CVE-2020-12692 [MEDIUM] CVE-2020-12692: An issue was discovered in OpenStack Keystone before 15
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
Ubuntu
OpenStack Keystone vulnerabilities
vendor_ubuntu·2020-09-01·CVSS 8.8
CVE-2020-12689 [HIGH] OpenStack Keystone vulnerabilities
Title: OpenStack Keystone vulnerabilities
Summary: Several security issues were fixed in OpenStack Keystone.
It was discovered that OpenStack Keystone incorrectly handled EC2
credentials. An authenticated attacker with a limited scope could possibly
create EC2 credentials with escalated permissions. (CVE-2020-12689,
CVE-2020-12691)
It was discovered that OpenStack Keystone incorrectly handled the list of
roles provided with OAuth1 access tokens. An authenticated user could
possibly end up with more role assignments than intended. (CVE-2020-12690)
It was discovered that OpenStack Keystone incorrectly handled EC2 signature
TTL checks. A remote attacker could possibly use this issue to reuse
Authorization headers. (CVE-2020-12692)
Instructions: In general, a standard system update will m
Red Hat
openstack-keystone: failure to check signature TTL of the EC2 credential auth method
vendor_redhat·2020-04-28·CVSS 5.4
CVE-2020-12692 [MEDIUM] CWE-863 openstack-keystone: failure to check signature TTL of the EC2 credential auth method
openstack-keystone: failure to check signature TTL of the EC2 credential auth method
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
A flaw was found in Keystone, where the restriction was not checked for the Signature Version 4 (V4) process of AWS signatures issued within a limited time window. This flaw allows an attacker to capture an auth header and reuse it, potentially maintaining indefinite access.
Package: openstack-keystone (Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)) - Out of support scope
Package: openstack-keystone (Red Hat JBoss Fuse 6) - Not affect
Debian
CVE-2020-12692: keystone - An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2...
vendor_debian·2020·CVSS 5.4
CVE-2020-12692 [MEDIUM] CVE-2020-12692: keystone - An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2...
An issue was discovered in OpenStack Keystone before 15.0.1, and 16.0.0. The EC2 API doesn't have a signature TTL check for AWS Signature V4. An attacker can sniff the Authorization header, and then use it to reissue an OpenStack token an unlimited number of times.
Scope: local
bookworm: resolved (fixed in 2:17.0.0~rc2-1)
bullseye: resolved (fixed in 2:17.0.0~rc2-1)
forky: resolved (fixed in 2:17.0.0~rc2-1)
sid: resolved (fixed in 2:17.0.0~rc2-1)
trixie: resolved (fixed in 2:17.0.0~rc2-1)
No detection rules found.
No public exploits indexed.
Bugzilla
CVE-2020-12692 openstack-keystone: failure to check signature TTL of the EC2 credential auth method
bugzilla·2020-05-07·CVSS 5.4
CVE-2020-12692 [MEDIUM] CVE-2020-12692 openstack-keystone: failure to check signature TTL of the EC2 credential auth method
CVE-2020-12692 openstack-keystone: failure to check signature TTL of the EC2 credential auth method
https://bugs.launchpad.net/keystone/+bug/1872737
Discussion:
External References:
https://security.openstack.org/ossa/OSSA-2020-003.html
---
Patches are available for train/stein/rocky/pike from the upstream bug page (linked in the first comment)
---
Created openstack-keystone tracking bugs for this issue:
Affects: openstack-rdo [bug 1833168]
---
Acknowledgments:
Name: kay (OpenStack)
---
This issue has been addressed in the following products:
Red Hat OpenStack Platform 13.0 (Queens)
Red Hat OpenStack Platform 13.0 (Queens) for RHEL 7.6 EUS
Via RHSA-2020:2732 https://access.redhat.com/errata/RHSA-2020:2732
---
This bug is now closed. Further updates for individual products
Bugzilla
CVE-2020-12692 openstack-keystone: failure to check signature TTL of the EC2 credential auth method [openstack-rdo]
bugzilla·2020-05-07·CVSS 5.4
CVE-2020-12692 [MEDIUM] CVE-2020-12692 openstack-keystone: failure to check signature TTL of the EC2 credential auth method [openstack-rdo]
CVE-2020-12692 openstack-keystone: failure to check signature TTL of the EC2 credential auth method [openstack-rdo]
This is an automatically created tracking bug! It was created to ensure
that one or more security vulnerabilities are fixed in affected versions
of openstack-rdo.
For comments that are specific to the vulnerability please use bugs filed
against the "Security Response" product referenced in the "Blocks" field.
For more information see:
http://fedoraproject.org/wiki/Security/TrackingBugs
When submitting as an update, use the fedpkg template provided in the next
comment(s). This will include the bug IDs of this tracking bug as well as
the relevant top-level CVE bugs.
Please also mention the CVE IDs being fixed in the RPM changelog and the
fedpkg commit message.
Discussion
http://www.openwall.com/lists/oss-security/2020/05/07/1https://bugs.launchpad.net/keystone/+bug/1872737https://security.openstack.org/ossa/OSSA-2020-003.htmlhttps://usn.ubuntu.com/4480-1/https://www.openwall.com/lists/oss-security/2020/05/06/4http://www.openwall.com/lists/oss-security/2020/05/07/1https://bugs.launchpad.net/keystone/+bug/1872737https://security.openstack.org/ossa/OSSA-2020-003.htmlhttps://usn.ubuntu.com/4480-1/https://www.openwall.com/lists/oss-security/2020/05/06/4
2020-05-07
Published