CVE-2021-27099
CVSS V2 Medium 4.9
CVSS V3 Medium 6.8
Description
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
Overview
- CVE ID
- CVE-2021-27099
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2021-03-05T18:15:13
- Last Modified Date
- 2021-03-16T18:47:17
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:* | 1 | OR | 0.8.5 | |
| cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:* | 1 | OR | 0.9.0 | 0.9.4 |
| cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:* | 1 | OR | 0.10.0 | 0.10.2 |
| cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:* | 1 | OR | 0.11.0 | 0.11.3 |
| cpe:2.3:a:cncf:spire:*:*:*:*:*:*:*:* | 1 | OR | 0.12.0 | 0.12.1 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:M/Au:S/C:P/I:P/A:N
- Access Vector
- NETWORK
- Access Compatibility
- MEDIUM
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- NONE
- Base Score
- 4.9
- Severity
- MEDIUM
- Exploitability Score
- 6.8
- Impact Score
- 4.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 6.8
- Base Severity
- MEDIUM
- Exploitability Score
- 1.6
- Impact Score
- 5.2
References
| Reference URL | Reference Tags |
|---|---|
| https://github.com/spiffe/spire/security/advisories/GHSA-q7gm-mjrg-44h9 | Patch Third Party Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-27099 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-27099 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:19:41 | Added to TrackCVE | |||
| 2022-12-05 23:13:33 | 2021-03-05T18:15Z | 2021-03-05T18:15:13 | CVE Published Date | updated |
| 2022-12-05 23:13:33 | 2021-03-16T18:47:17 | CVE Modified Date | updated | |
| 2022-12-05 23:13:33 | Analyzed | Vulnerability Status | updated |