CVE-2021-27770

The vulnerability was discovered within the “FaviconService”. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the “meetings”-function where users can specify an external URL where the online meeting will take place.

CVSS v3 8.8 HIGH
CVSS v2.0 6.8 MEDIUM

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:hcltech:sametime:11.6:*:*:*:*:*:*:*

History

30 Jun 2023, 21:26

Type	Values Removed	Values Added
CWE	~~CWE-668~~	NVD-CWE-Other

24 May 2022, 18:47

Type	Values Removed	Values Added
References	~~(MISC) https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430 -~~	(MISC) https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430 - Vendor Advisory
First Time		Hcltech Hcltech sametime
CWE		CWE-668
CPE		cpe:2.3:a:hcltech:sametime:11.6:::::::*
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 6.8 v3 : 8.8

12 May 2022, 22:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2022-05-12 22:15

Updated : 2023-12-10 14:22

NVD link : CVE-2021-27770

Mitre link : CVE-2021-27770

CVE.ORG link : CVE-2021-27770

JSON object : View

Products Affected

hcltech

sametime

CWE

NVD-CWE-Other CWE-472

External Control of Assumed-Immutable Web Parameter

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