CVE-2021-38153

Timing Attack Vulnerability for Apache Kafka Connect and Clients

Severity Score

5.9

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Some components in Apache Kafka use `Arrays.equals` to validate a password or key, which is vulnerable to timing attacks that make brute force attacks for such credentials more likely to be successful. Users should upgrade to 2.8.1 or higher, or 3.0.0 or higher where this vulnerability has been fixed. The affected versions include Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1, and 2.8.0.

Algunos componentes de Apache Kafka usan "Arrays.equals" para comprender una contraseña o clave, lo cual es vulnerable a ataques de tiempo que hacen que los ataques de fuerza bruta para dichas credenciales tengan más probabilidades de éxito. Los usuarios deben actualizar a la versión 2.8.1 o superior, o a la 3.0.0 o superior, donde se ha corregido esta vulnerabilidad. Las versiones afectadas son Apache Kafka 2.0.0, 2.0.1, 2.1.0, 2.1.1, 2.2.0, 2.2.1, 2.2.2, 2.3.0, 2.3.1, 2.4.0, 2.4.1, 2.5.0, 2.5.1, 2.6.0, 2.6.1, 2.6.2, 2.7.0, 2.7.1 y 2.8.0

*Credits: Apache Kafka would like to thank J. Santilli for reporting this issue.

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-08-06 CVE Reserved
2021-09-22 CVE Published
2024-06-07 EPSS Updated
2024-08-04 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-203: Observable Discrepancy
CWE-367: Time-of-check Time-of-use (TOCTOU) Race Condition

CAPEC

References (13)

URL	Tag	Source
https://lists.apache.org/thread.html/r26390c8b09ecfa356582d665b0c01f4cdcf16ac047c85f9f9f06a88c%40%3Cdev.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r26390c8b09ecfa356582d665b0c01f4cdcf16ac047c85f9f9f06a88c%40%3Cusers.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r35322aec467ddae34002690edaa4d9f16e7df9b5bf7164869b75b62c%40%3Cdev.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r45cc0602d5f2cbb72e48896dfadf5e5b87ed85630449598b40e8f0be%40%3Cdev.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r45cc0602d5f2cbb72e48896dfadf5e5b87ed85630449598b40e8f0be%40%3Cusers.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rd9ef217b09fdefaf32a4e1835b59b96629542db57e1f63edb8b006e6%40%3Cdev.kafka.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rd9ef217b09fdefaf32a4e1835b59b96629542db57e1f63edb8b006e6%40%3Cusers.kafka.apache.org%3E	Mailing List
https://www.oracle.com/security-alerts/cpujan2022.html	Third Party Advisory
https://www.oracle.com/security-alerts/cpujul2022.html	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://www.oracle.com/security-alerts/cpuapr2022.html	2023-11-07

URL	Date	SRC
https://kafka.apache.org/cve-list	2023-11-07
https://access.redhat.com/security/cve/CVE-2021-38153	2022-09-09
https://bugzilla.redhat.com/show_bug.cgi?id=2009041	2022-09-09

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Apache Search vendor "Apache"		Kafka Search vendor "Apache" for product "Kafka"				>= 2.0.0 < 2.6.3 Search vendor "Apache" for product "Kafka" and version " >= 2.0.0 < 2.6.3"		-		Affected
Apache Search vendor "Apache"		Kafka Search vendor "Apache" for product "Kafka"				>= 2.7.0 < 2.7.2 Search vendor "Apache" for product "Kafka" and version " >= 2.7.0 < 2.7.2"		-		Affected
Apache Search vendor "Apache"		Kafka Search vendor "Apache" for product "Kafka"				2.8.0 Search vendor "Apache" for product "Kafka" and version "2.8.0"		-		Affected
Quarkus Search vendor "Quarkus"		Quarkus Search vendor "Quarkus" for product "Quarkus"				< 2.2.4 Search vendor "Quarkus" for product "Quarkus" and version " < 2.2.4"		-		Affected
Oracle Search vendor "Oracle"		Communications Brm - Elastic Charging Engine Search vendor "Oracle" for product "Communications Brm - Elastic Charging Engine"				< 12.0.0.4.6 Search vendor "Oracle" for product "Communications Brm - Elastic Charging Engine" and version " < 12.0.0.4.6"		-		Affected
Oracle Search vendor "Oracle"		Communications Brm - Elastic Charging Engine Search vendor "Oracle" for product "Communications Brm - Elastic Charging Engine"				12.0.0.5.0 Search vendor "Oracle" for product "Communications Brm - Elastic Charging Engine" and version "12.0.0.5.0"		-		Affected
Oracle Search vendor "Oracle"		Communications Cloud Native Core Policy Search vendor "Oracle" for product "Communications Cloud Native Core Policy"				1.15.0 Search vendor "Oracle" for product "Communications Cloud Native Core Policy" and version "1.15.0"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Analytical Applications Infrastructure Search vendor "Oracle" for product "Financial Services Analytical Applications Infrastructure"				>= 8.0.6.0 <= 8.0.9.0 Search vendor "Oracle" for product "Financial Services Analytical Applications Infrastructure" and version " >= 8.0.6.0 <= 8.0.9.0"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Analytical Applications Infrastructure Search vendor "Oracle" for product "Financial Services Analytical Applications Infrastructure"				>= 8.1.0.0.0 <= 8.1.20 Search vendor "Oracle" for product "Financial Services Analytical Applications Infrastructure" and version " >= 8.1.0.0.0 <= 8.1.20"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Behavior Detection Platform Search vendor "Oracle" for product "Financial Services Behavior Detection Platform"				>= 8.0.6.0.0 <= 8.0.8.0 Search vendor "Oracle" for product "Financial Services Behavior Detection Platform" and version " >= 8.0.6.0.0 <= 8.0.8.0"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Behavior Detection Platform Search vendor "Oracle" for product "Financial Services Behavior Detection Platform"				8.1.1.0 Search vendor "Oracle" for product "Financial Services Behavior Detection Platform" and version "8.1.1.0"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Behavior Detection Platform Search vendor "Oracle" for product "Financial Services Behavior Detection Platform"				8.1.1.1 Search vendor "Oracle" for product "Financial Services Behavior Detection Platform" and version "8.1.1.1"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Behavior Detection Platform Search vendor "Oracle" for product "Financial Services Behavior Detection Platform"				8.1.2.0 Search vendor "Oracle" for product "Financial Services Behavior Detection Platform" and version "8.1.2.0"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Enterprise Case Management Search vendor "Oracle" for product "Financial Services Enterprise Case Management"				8.0.7.1 Search vendor "Oracle" for product "Financial Services Enterprise Case Management" and version "8.0.7.1"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Enterprise Case Management Search vendor "Oracle" for product "Financial Services Enterprise Case Management"				8.0.7.2 Search vendor "Oracle" for product "Financial Services Enterprise Case Management" and version "8.0.7.2"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Enterprise Case Management Search vendor "Oracle" for product "Financial Services Enterprise Case Management"				8.0.8.0 Search vendor "Oracle" for product "Financial Services Enterprise Case Management" and version "8.0.8.0"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Enterprise Case Management Search vendor "Oracle" for product "Financial Services Enterprise Case Management"				8.0.8.1 Search vendor "Oracle" for product "Financial Services Enterprise Case Management" and version "8.0.8.1"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Enterprise Case Management Search vendor "Oracle" for product "Financial Services Enterprise Case Management"				8.1.1.0 Search vendor "Oracle" for product "Financial Services Enterprise Case Management" and version "8.1.1.0"		-		Affected
Oracle Search vendor "Oracle"		Financial Services Enterprise Case Management Search vendor "Oracle" for product "Financial Services Enterprise Case Management"				8.1.1.1 Search vendor "Oracle" for product "Financial Services Enterprise Case Management" and version "8.1.1.1"		-		Affected
Oracle Search vendor "Oracle"		Primavera Unifier Search vendor "Oracle" for product "Primavera Unifier"				18.8 Search vendor "Oracle" for product "Primavera Unifier" and version "18.8"		-		Affected
Oracle Search vendor "Oracle"		Primavera Unifier Search vendor "Oracle" for product "Primavera Unifier"				19.12 Search vendor "Oracle" for product "Primavera Unifier" and version "19.12"		-		Affected
Oracle Search vendor "Oracle"		Primavera Unifier Search vendor "Oracle" for product "Primavera Unifier"				20.12 Search vendor "Oracle" for product "Primavera Unifier" and version "20.12"		-		Affected
Oracle Search vendor "Oracle"		Primavera Unifier Search vendor "Oracle" for product "Primavera Unifier"				21.12 Search vendor "Oracle" for product "Primavera Unifier" and version "21.12"		-		Affected