Details of VAR-202111-1282

ID

VAR-202111-1282

CVE

CVE-2021-43557

TITLE

Apache APISIX command injection vulnerability

Trust: 1.2

sources: CNVD: CNVD-2021-92472 // CNNVD: CNNVD-202111-1831

DESCRIPTION

The uri-block plugin in Apache APISIX before 2.10.2 uses $request_uri without verification. The $request_uri is the full original request URI without normalization. This makes it possible to construct a URI to bypass the block list on some occasions. For instance, when the block list contains "^/internal/", a URI like `//internal/` can be used to bypass it. Some other plugins also have the same issue. And it may affect the developer's custom plugin. Apache APISIX Contains a command injection vulnerability.Information may be obtained. Apache Apisix is a cloud-native microservice API gateway service of the Apache Foundation in the United States. The software is implemented based on OpenResty and etcd, with dynamic routing and plug-in hot loading, suitable for API management under the microservice system. Apache APISIX has a security vulnerability, which stems from improper design or implementation issues in the code development process of network systems or products. No detailed vulnerability details are currently provided

Trust: 2.25

sources: NVD: CVE-2021-43557 // JVNDB: JVNDB-2021-015473 // CNVD: CNVD-2021-92472 // VULMON: CVE-2021-43557

IOT TAXONOMY

category:

['Network device']

sub_category:

Trust: 0.6

sources: CNVD: CNVD-2021-92472

AFFECTED PRODUCTS

vendor:	apache	model:	apisix	scope:	lt	version:	2.10.2	Trust: 1.6
vendor:	apache	model:	apisix	scope:	eq	version:	2.10.2	Trust: 0.8
vendor:	apache	model:	apisix	scope:	eq	version:	-	Trust: 0.8

sources: CNVD: CNVD-2021-92472 // JVNDB: JVNDB-2021-015473 // NVD: CVE-2021-43557

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov:	CVE-2021-43557
value:	HIGH
Trust: 1.0
NVD:	CVE-2021-43557
value:	HIGH
Trust: 0.8
CNVD:	CNVD-2021-92472
value:	MEDIUM
Trust: 0.6
CNNVD:	CNNVD-202111-1831
value:	HIGH
Trust: 0.6
VULMON:	CVE-2021-43557
value:	MEDIUM
Trust: 0.1

nvd@nist.gov:	CVE-2021-43557
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 1.9
CNVD:	CNVD-2021-92472
severity:	MEDIUM
baseScore:	5.0
vectorString:	AV:N/AC:L/AU:N/C:P/I:N/A:N
accessVector:	NETWORK
accessComplexity:	LOW
authentication:	NONE
confidentialityImpact:	PARTIAL
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	10.0
impactScore:	2.9
acInsufInfo:	NONE
obtainAllPrivilege:	NONE
obtainUserPrivilege:	NONE
obtainOtherPrivilege:	NONE
userInteractionRequired:	NONE
version:	2.0
Trust: 0.6

nvd@nist.gov:	CVE-2021-43557
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	3.9
impactScore:	3.6
version:	3.1
Trust: 1.0
NVD:	CVE-2021-43557
baseSeverity:	HIGH
baseScore:	7.5
vectorString:	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
attackVector:	NETWORK
attackComplexity:	LOW
privilegesRequired:	NONE
userInteraction:	NONE
scope:	UNCHANGED
confidentialityImpact:	HIGH
integrityImpact:	NONE
availabilityImpact:	NONE
exploitabilityScore:	NONE
impactScore:	NONE
version:	3.0
Trust: 0.8

sources: CNVD: CNVD-2021-92472 // VULMON: CVE-2021-43557 // JVNDB: JVNDB-2021-015473 // CNNVD: CNNVD-202111-1831 // NVD: CVE-2021-43557

PROBLEMTYPE DATA

problemtype:	CWE-77	Trust: 1.0
problemtype:	Command injection (CWE-77) [NVD evaluation ]	Trust: 0.8

sources: JVNDB: JVNDB-2021-015473 // NVD: CVE-2021-43557

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202111-1831

TYPE

command injection

Trust: 0.6

sources: CNNVD: CNNVD-202111-1831

PATCH

title:	Path traversal in request_uri variable	url:	https://lists.apache.org/thread/18jyd458ptocr31rnkjs71w4h366mv7h	Trust: 0.8
title:	Patch for Apache APISIX command injection vulnerability	url:	https://www.cnvd.org.cn/patchInfo/show/301916	Trust: 0.6
title:	Apache Apisix Fixes for command injection vulnerabilities	url:	http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=173024	Trust: 0.6
title:	-	url:	https://github.com/pen4uin/awesome-vulnerability-research	Trust: 0.1
title:	-	url:	https://github.com/pen4uin/vulnerability-research-list	Trust: 0.1

sources: CNVD: CNVD-2021-92472 // VULMON: CVE-2021-43557 // JVNDB: JVNDB-2021-015473 // CNNVD: CNNVD-202111-1831

EXTERNAL IDS

db:	NVD	id:	CVE-2021-43557	Trust: 3.9
db:	OPENWALL	id:	OSS-SECURITY/2021/11/22/1	Trust: 2.5
db:	OPENWALL	id:	OSS-SECURITY/2021/11/22/2	Trust: 2.5
db:	OPENWALL	id:	OSS-SECURITY/2021/11/23/1	Trust: 2.5
db:	JVNDB	id:	JVNDB-2021-015473	Trust: 0.8
db:	CNVD	id:	CNVD-2021-92472	Trust: 0.6
db:	CS-HELP	id:	SB2021112611	Trust: 0.6
db:	CNNVD	id:	CNNVD-202111-1831	Trust: 0.6
db:	VULMON	id:	CVE-2021-43557	Trust: 0.1

sources: CNVD: CNVD-2021-92472 // VULMON: CVE-2021-43557 // JVNDB: JVNDB-2021-015473 // CNNVD: CNNVD-202111-1831 // NVD: CVE-2021-43557

REFERENCES

url:	http://www.openwall.com/lists/oss-security/2021/11/22/2	Trust: 2.5
url:	http://www.openwall.com/lists/oss-security/2021/11/22/1	Trust: 2.5
url:	http://www.openwall.com/lists/oss-security/2021/11/23/1	Trust: 2.5
url:	https://nvd.nist.gov/vuln/detail/cve-2021-43557	Trust: 2.0
url:	https://lists.apache.org/thread/18jyd458ptocr31rnkjs71w4h366mv7h	Trust: 1.7
url:	https://www.cybersecurity-help.cz/vdb/sb2021112611	Trust: 0.6
url:	https://cwe.mitre.org/data/definitions/77.html	Trust: 0.1
url:	https://nvd.nist.gov	Trust: 0.1
url:	http://seclists.org/oss-sec/2021/q4/126	Trust: 0.1

sources: CNVD: CNVD-2021-92472 // VULMON: CVE-2021-43557 // JVNDB: JVNDB-2021-015473 // CNNVD: CNNVD-202111-1831 // NVD: CVE-2021-43557

SOURCES

db:	CNVD	id:	CNVD-2021-92472
db:	VULMON	id:	CVE-2021-43557
db:	JVNDB	id:	JVNDB-2021-015473
db:	CNNVD	id:	CNNVD-202111-1831
db:	NVD	id:	CVE-2021-43557

LAST UPDATE DATE

2024-11-23T22:15:59.807000+00:00

SOURCES UPDATE DATE

db:	CNVD	id:	CNVD-2021-92472	date:	2021-11-30T00:00:00
db:	VULMON	id:	CVE-2021-43557	date:	2021-11-26T00:00:00
db:	JVNDB	id:	JVNDB-2021-015473	date:	2022-11-22T01:47:00
db:	CNNVD	id:	CNNVD-202111-1831	date:	2021-12-07T00:00:00
db:	NVD	id:	CVE-2021-43557	date:	2024-11-21T06:29:25.887

SOURCES RELEASE DATE

db:	CNVD	id:	CNVD-2021-92472	date:	2021-11-30T00:00:00
db:	VULMON	id:	CVE-2021-43557	date:	2021-11-22T00:00:00
db:	JVNDB	id:	JVNDB-2021-015473	date:	2022-11-22T00:00:00
db:	CNNVD	id:	CNNVD-202111-1831	date:	2021-11-22T00:00:00
db:	NVD	id:	CVE-2021-43557	date:	2021-11-22T09:15:07.627