CVE-2021-27772 — HIGH (7.1)

Vulnerability Description

Users are able to read group conversations without actively taking part in them. Next to one to one conversations, users are able to start group conversations with multiple users. It was found possible to obtain the contents of these group conversations without being part of it. This could lead to information leakage where confidential information discussed in private groups is read by other users without the users knowledge.

CVSS Score

7.1

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

NONE

Availability

LOW

Affected Products

Vendor	Product	Versions
Hcltech	Sametime	11.6

Related Weaknesses (CWE)

CWE-285

References

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430Vendor Advisory
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430Vendor Advisory

FAQ

What is CVE-2021-27772?

CVE-2021-27772 is a vulnerability with a CVSS score of 7.1 (HIGH). Users are able to read group conversations without actively taking part in them. Next to one to one conversations, users are able to start group conversations with multiple users. It was found possibl...

How severe is CVE-2021-27772?

CVE-2021-27772 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-27772?

Check the references section above for vendor advisories and patch information. Affected products include: Hcltech Sametime.