CVE-2021-27099

In SPIRE before versions 0.8.5, 0.9.4, 0.10.2, 0.11.3 and 0.12.1, the "aws_iid" Node Attestor improperly normalizes the path provided through the agent ID templating feature, which may allow the issuance of an arbitrary SPIFFE ID within the same trust domain, if the attacker controls the value of an EC2 tag prior to attestation, and the attestor is configured for agent ID templating where the tag value is the last element in the path. This issue has been fixed in SPIRE versions 0.11.3 and 0.12.1

CVSS v3.0 6.8 MEDIUM
CVSS v2.0 4.9 MEDIUM

6.8^/10

CVSS v3.0 : MEDIUM

Vector :

Exploitability : 1.6 / Impact : 5.2

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

4.9^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:S/C:P/I:P/A:N

Exploitability : 6.8 / Impact : 4.9

Access Vector NETWORK

Access Complexity MEDIUM

Authentication SINGLE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact NONE

References

Link	Resource
https://github.com/spiffe/spire/security/advisories/GHSA-q7gm-mjrg-44h9	Patch Third Party Advisory

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Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::
	cpe:2.3:a:cncf:spire::::::::

Information

Published : 2021-03-05 10:15

Updated : 2021-03-16 11:47

NVD link : CVE-2021-27099

Mitre link : CVE-2021-27099

JSON object : View

CWE

CWE-863

Incorrect Authorization

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Products Affected

cncf

spire

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