CVE-2020-24653 Expo on iOS is insecure due incorrect security attribute application
Critical 9.8
Published
Updated
Check this codebase for CVE-2020-24653 and fix it if it is affected.
What it is: CVE-2020-24653 is a critical vulnerability in n/a, published on 26 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-24653 in the wild and no public exploit code.
Affected packages and fixed versions:
- expo (npm): affected all versions; fixed in 9.1.0
- expo (npm): affected all versions; fixed in 9.1.0
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-2020-24653/ (Markdown: https://insights.sbomify.com/CVE-2020-24653/index.md)
The Expo secure-store library uses an insecure iOS keychain policy, potentially exposing stored data to attackers on the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2020-24653?
CVE-2020-24653 is a critical vulnerability in n/a, published on 26 Aug 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
secure-store in Expo through 2.16.1 on iOS provides the insecure kSecAttrAccessibleAlwaysThisDeviceOnly policy when WHEN_UNLOCKED_THIS_DEVICE_ONLY is used.
Which versions are affected by CVE-2020-24653?
2 open source packages ship an affected version, including expo. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
expo npm | All versions | 9.1.0 |
expo npm | All versions | 9.1.0 |
Products include Expo Expo.
How do I fix CVE-2020-24653?
Upgrade expo to 9.1.0 or later.
Is CVE-2020-24653 being exploited?
There is no known exploitation of CVE-2020-24653 in the wild and no public exploit code.
Sources
Also known as GHSA-rwx9-wqj8-vr77.