// For flags

CVE-2021-27770

HCL Sametime is vulnerable to arbitrary HTTP requests

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Una vulnerabilidad fue detectada dentro de "FaviconService". El servicio toma una URL codificada en base64 que luego es solicitada por el servidor web. Suponemos que este servicio es usado por la función "meetings", en la que usuarios pueden especificar una URL externa en la que tendrá lugar la reunión en línea

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
Low
Availability
Low
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-02-26 CVE Reserved
  • 2022-05-12 CVE Published
  • 2023-12-03 EPSS Updated
  • 2024-09-16 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-472: External Control of Assumed-Immutable Web Parameter
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Hcltech
Search vendor "Hcltech"
 Sametime
Search vendor "Hcltech" for product "Sametime"
 11.6
Search vendor "Hcltech" for product "Sametime" and version "11.6"
-
Affected