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

> Attackers can intercept sensitive account information via Man-in-the-Middle attacks due to missing SSL hostname verification in the HCL Verse Android application.

- **Severity:** Medium 6.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 12 May 2022
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-v5hf-q535-5h32

## What is CVE-2021-27768?

CVE-2021-27768 is a medium-severity vulnerability in HCL Software Verse for Android, published on 12 May 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

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.

Weakness: CWE-295 (Improper Certificate Validation), CWE-300 (Channel Accessible by Non-Endpoint)

## Which versions are affected by CVE-2021-27768?

It affects 1 product.


Products: Hcltech Verse.

## How do I fix CVE-2021-27768?

No fix has been published for CVE-2021-27768 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-27768 being exploited?

There is no known exploitation of CVE-2021-27768 in the wild and no public exploit code.

## Other vulnerabilities in HCL Software Verse for Android

- [CVE-2023-37496](https://insights.sbomify.com/CVE-2023-37496/): HCL Verse is susceptible to a Stored Cross-Site Scripting (XSS) Vulnerability (high 8.3)
- [CVE-2021-27788](https://insights.sbomify.com/CVE-2021-27788/): HCL Verse is susceptible to a Cross Site Scripting (XSS) vulnerability (high 8.3)
- [CVE-2023-28013](https://insights.sbomify.com/CVE-2023-28013/): HCL Verse is susceptible to a Reflected Cross-Site Scripting (XSS) Vulnerability (medium 6.5)
- [CVE-2020-4099](https://insights.sbomify.com/CVE-2020-4099/): HCL Verse for Android is susceptible to an APK signing key check vulnerability (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-27768 and fix it if it is affected.

What it is: CVE-2021-27768 is a medium-severity vulnerability in HCL Software Verse for Android, published on 12 May 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2021-27768 in the wild and no public exploit code.

Affected product: HCL Software Verse for Android. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2021-27768/ (Markdown: https://insights.sbomify.com/CVE-2021-27768/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-27768
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-27768
- OSV: https://osv.dev/vulnerability/CVE-2021-27768

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-27768/
Summaries are generated and may contain mistakes; the official description above is the record.