# CVE-2024-10748: Cosmote Greece What's Up App Realm Database RealmDB.java default key

> An attacker with local access can exploit a hardcoded default cryptographic key in the Realm database to potentially read sensitive data.

- **Severity:** Low 2.0 (`CVSS:4.0/AV:L/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 4 Nov 2024
- **Updated:** 4 Nov 2024
- **Also known as:** GHSA-ch3r-qc65-hpfh

## What is CVE-2024-10748?

CVE-2024-10748 is a low-severity vulnerability in Cosmote Greece What's Up App, published on 4 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability, which was classified as problematic, has been found in Cosmote Greece What's Up App 4.47.3 on Android. This issue affects some unknown processing of the file gr/desquared/kmmsharedmodule/db/RealmDB.java of the component Realm Database Handler. The manipulation of the argument defaultRealmKey leads to use of default cryptographic key. Local access is required to approach this attack. The complexity of an attack is rather high. The exploitation is known to be difficult. The vendor was contacted early about this disclosure but did not respond in any way.

Weakness: CWE-798 (Use of Hard-coded Credentials), CWE-1394 (Use of Default Cryptographic Key)

## Which versions are affected by CVE-2024-10748?

It affects 1 product.


Products: Cosmote What\'s Up.

## How do I fix CVE-2024-10748?

No fix has been published for CVE-2024-10748 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-10748 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-10748 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-10748 and fix it if it is affected.

What it is: CVE-2024-10748 is a low-severity vulnerability in Cosmote Greece What's Up App, published on 4 Nov 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-10748 exists.

Affected product: Cosmote Greece What's Up App. 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-2024-10748/ (Markdown: https://insights.sbomify.com/CVE-2024-10748/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-10748
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-10748
- OSV: https://osv.dev/vulnerability/CVE-2024-10748

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-10748/
Summaries are generated and may contain mistakes; the official description above is the record.