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

No history.

Information

Published : 2022-05-12 22:15

Updated : 2023-06-30 21:26

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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