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cvelistHCLCVELIST:CVE-2021-27768
HistoryApr 11, 2022 - 12:00 a.m.

CVE-2021-27768 An SSL certificate host verification vulnerability affects HCL Verse for Android

2022-04-1100:00:00
CWE-300
HCL
www.cve.org

6.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

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

6.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.6%

Using the ability to perform a Man-in-the-Middle (MITM) attack, which indicates a lack of hostname verification, sensitive account information was able to be intercepted. In this specific scenario, the application’s network traffic was intercepted using a proxy server set up in ‘transparent’ mode while a certificate with an invalid hostname was active. The Android application was found to have hostname verification issues during the server setup and login flows; however, the application did not process requests post-login.

CNA Affected

[
  {
    "product": "Verse for Android",
    "vendor": "HCL Software",
    "versions": [
      {
        "lessThan": "12.0.9",
        "status": "affected",
        "version": "unspecified",
        "versionType": "custom"
      }
    ]
  }
]

6.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

LOW

Availability Impact

NONE

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

6.4 Medium

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

38.6%

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