// For flags

CVE-2021-27099

 

Severity Score

6.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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

En SPIRE versiones anteriores a 0.8.5, 0.9.4, 0.10.2, 0.11.3 y 0.12.1, el Node Attestor "aws_iid" normaliza inapropiadamente la ruta proporcionada por medio de la funcionalidad agent ID templating, lo que puede permitir la emisión de un ID de SPIFFE dentro del mismo dominio confiable, si el atacante controla el valor de una etiqueta EC2 antes de una certificación, y el certificador está configurado para plantillas de ID de agente donde el valor de la etiqueta es el último elemento de la ruta. Este problema ha sido corregido en versiones 0.11.3 y 0.12.1 de SPIRE

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
Single
Confidentiality
Partial
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-02-10 CVE Reserved
  • 2021-03-05 CVE Published
  • 2023-03-08 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-863: Incorrect Authorization
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cncf
Search vendor "Cncf"
 Spire
Search vendor "Cncf" for product "Spire"
 < 0.8.5
Search vendor "Cncf" for product "Spire" and version " < 0.8.5"
-
Affected
Cncf
Search vendor "Cncf"
 Spire
Search vendor "Cncf" for product "Spire"
 >= 0.9.0 < 0.9.4
Search vendor "Cncf" for product "Spire" and version " >= 0.9.0 < 0.9.4"
-
Affected
Cncf
Search vendor "Cncf"
 Spire
Search vendor "Cncf" for product "Spire"
 >= 0.10.0 < 0.10.2
Search vendor "Cncf" for product "Spire" and version " >= 0.10.0 < 0.10.2"
-
Affected
Cncf
Search vendor "Cncf"
 Spire
Search vendor "Cncf" for product "Spire"
 >= 0.11.0 < 0.11.3
Search vendor "Cncf" for product "Spire" and version " >= 0.11.0 < 0.11.3"
-
Affected
Cncf
Search vendor "Cncf"
 Spire
Search vendor "Cncf" for product "Spire"
 >= 0.12.0 < 0.12.1
Search vendor "Cncf" for product "Spire" and version " >= 0.12.0 < 0.12.1"
-
Affected