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CVE-2021-27772— HCL Sametime is vulnerable to an information disclosure

Quick assessment

Affected
HCL Software Sametime
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HCL Sametime是HCL Technologies的一个会议解决方案。 HCL Sametime 11.6 版本存在授权问题漏洞，该漏洞源于应用中用户无需主动参与即可阅读群组对话。攻击者可以利用该漏洞实现敏感信息读取。

CVSS 7.1 · High EPSS 0.68% · P50

Possible ATT&CK Techniques 1 AI

T1530 · Data from Cloud Storage
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I. Basic Information for CVE-2021-27772

Vulnerability Information
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Vulnerability Title
HCL Sametime is vulnerable to an information disclosure
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
HCL Technologies HCL Sametime 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
HCL Sametime是HCL Technologies的一个会议解决方案。 HCL Sametime 11.6 版本存在授权问题漏洞，该漏洞源于应用中用户无需主动参与即可阅读群组对话。攻击者可以利用该漏洞实现敏感信息读取。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
HCL Software Sametime 11.6 -

II. Public POCs for CVE-2021-27772

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III. Intelligence Information for CVE-2021-27772

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Other References for CVE-2021-27772 (1)

Same Patch Batch · HCL Software · 2022-05-12 · 7 CVEs total

CVE-2021-27771 8.2 HIGH HCL Sametime is susceptible a file transfer service vulnerability
CVE-2021-27777 7.5 HIGH HCL Unica Platform is vulnerable to XML External Entity (XXE) injection
CVE-2021-27770 6.8 MEDIUM HCL Sametime is vulnerable to arbitrary HTTP requests
CVE-2021-27768 6.3 MEDIUM An SSL certificate host verification vulnerability affects HCL Verse for Android
CVE-2021-27769 5.3 MEDIUM HCL Sametime is vulnerable to an information disclosure
CVE-2021-27773 4.2 MEDIUM HCL Sametime is vulnerable to clickjacking

IV. Related Vulnerabilities

Same product: Sametime
Same vendor: HCL Software
Same weakness: CWE-285

V. Comments for CVE-2021-27772

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