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HCLCVE-2021-27770

HistoryMay 12, 2022 - 10:15 p.m.

CVE-2021-27770

2022-05-1222:15:11

CWE-472

HCL

web.nvd.nist.gov

cve-2021-27770

faviconservice

webserver

vulnerability

meetings

online meeting

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.6

Confidence

High

EPSS

0.002

Percentile

58.3%

JSON

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.

Affected configurations

Nvd

Node

hcltechsametimeMatch11.6

VendorProductVersionCPE
hcltechsametime11.6cpe:2.3:a:hcltech:sametime:11.6:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
hcltech	sametime	11.6	cpe:2.3:a:hcltech:sametime:11.6:::::::*

CNA Affected

[
  {
    "product": "Sametime",
    "vendor": "HCL Software",
    "versions": [
      {
        "status": "affected",
        "version": "11.6"
      }
    ]
  }
]

References

support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430

Social References

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

AI Score

8.6

Confidence

High

EPSS

0.002

Percentile

58.3%

JSON

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