CVE-2021-27098
March 05, 2021
In SPIRE 0.8.1 through 0.8.4 and before versions 0.9.4, 0.10.2, 0.11.3 and 0.12.1, specially crafted requests to the FetchX509SVID RPC of SPIRE Server’s Legacy Node API can result in the possible issuance of an X.509 certificate with a URI SAN for a SPIFFE ID that the agent is not authorized to distribute. Proper controls are in place to require that the caller presents a valid agent certificate that is already authorized to issue at least one SPIFFE ID, and the requested SPIFFE ID belongs to the same trust domain, prior to being able to trigger this vulnerability. This issue has been fixed in SPIRE versions 0.8.5, 0.9.4, 0.10.2, 0.11.3 and 0.12.1.
Affected Packages
github.com/spiffe/spire (GO):
Affected version(s) =v0.12.0 <v0.12.1Fix Suggestion:
Update to version v0.12.1github.com/spiffe/spire (GO):
Affected version(s) >=v0.10.0 <v0.10.2Fix Suggestion:
Update to version v0.10.2github.com/spiffe/spire (GO):
Affected version(s) >=v0.9.1-0.20191203215429-02ce9f738bae <v0.9.4Fix Suggestion:
Update to version v0.9.4github.com/spiffe/spire (GO):
Affected version(s) >=v0.11.0 <v0.11.3Fix Suggestion:
Update to version v0.11.3Related Resources (4)
Do you need more information?
Contact UsCVSS v4
Base Score:
8.6
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
LOW
User Interaction
NONE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
HIGH
Vulnerable System Availability
NONE
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
8.1
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
NONE
CVSS v2
Base Score:
5.5
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
NONE
EPSS
Base Score:
0.12
