CVE-2021-20801

CVSS V2 Medium 4 CVSS V3 Medium 6.5

Description

Cybozu Remote Service 3.1.8 to 3.1.9 allows a remote authenticated attacker to conduct XML External Entity (XXE) attacks and obtain the information stored in the product via unspecified vectors. This issue occurs only when using Mozilla Firefox.

Overview

CVE ID
CVE-2021-20801

Assigner
vultures@jpcert.or.jp

Vulnerability Status
Analyzed

Published Version
2021-10-13T09:15:07

Last Modified Date
2021-10-19T19:19:02

Weakness Enumerations

CWE	URL
CWE-611	http://cwe.mitre.org/data/definitions/611.html

CPE Configuration (Product)

CPE	Vulnerable	Operator	Version Start	Version End
cpe:2.3:a:cybozu:remote_service_manager:3.1.8:::::::*	1	OR
cpe:2.3:a:cybozu:remote_service_manager:3.1.9:::::::*	1	OR

CVSS Version 2

Version
2.0

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

Access Vector
NETWORK

Access Compatibility
LOW

Authentication
SINGLE

Confidentiality Impact
PARTIAL

Integrity Impact
NONE

Availability Impact
NONE

Base Score
4

Severity
MEDIUM

Exploitability Score
8

Impact Score
2.9

CVSS Version 3

Version
3.1

Vector String
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK

Attack Compatibility
LOW

Privileges Required
LOW

User Interaction
NONE

Scope
UNCHANGED

Confidentiality Impact
HIGH

Availability Impact
NONE

Base Score
6.5

Base Severity
MEDIUM

Exploitability Score
2.8

Impact Score
3.6

References

Reference URL	Reference Tags
https://kb.cybozu.support/article/37423	Vendor Advisory
https://jvn.jp/en/jp/JVN52694228/index.html	Third Party Advisory

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-20801
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20801

History

Created	Old Value	New Value	Data Type	Notes
2022-05-10 06:50:26				Added to TrackCVE
2022-12-05 12:22:34	2021-10-13T09:15Z	2021-10-13T09:15:07	CVE Published Date	updated
2022-12-05 12:22:34		2021-10-19T19:19:02	CVE Modified Date	updated
2022-12-05 12:22:34		Analyzed	Vulnerability Status	updated