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HIGH · 8.2

CVE-2021-27771

User SID can be modified resulting in an Arbitrary File Upload or deletion of directories causing a Denial of Service. When interacting in a normal matter with the Sametime chat application, users hol...

Vulnerability Description

User SID can be modified resulting in an Arbitrary File Upload or deletion of directories causing a Denial of Service. When interacting in a normal matter with the Sametime chat application, users hold a cookie containing their session ID (SID). This value is also used when sending chat messages, receiving notifications and/or transferring files.

CVSS Score

8.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:H
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
HIGH

Affected Products

VendorProductVersions
HcltechSametime11.6

Related Weaknesses (CWE)

CWE-22CWE-434

References

FAQ

What is CVE-2021-27771?

CVE-2021-27771 is a vulnerability with a CVSS score of 8.2 (HIGH). User SID can be modified resulting in an Arbitrary File Upload or deletion of directories causing a Denial of Service. When interacting in a normal matter with the Sametime chat application, users hol...

How severe is CVE-2021-27771?

CVE-2021-27771 has been rated HIGH with a CVSS base score of 8.2/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2021-27771?

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