# CVE-2003-0355: Security feature bypass in n/a

> Safari fails to validate X.509 certificate Common Names, allowing remote attackers to spoof certificates and bypass security warnings.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:N/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 30 May 2003
- **Updated:** 17 Sep 2024
- **Also known as:** GHSA-xgff-48h7-pjqg

## What is CVE-2003-0355?

CVE-2003-0355 is a medium-severity vulnerability in Apple Safari, published on 30 May 2003. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Safari 1.0 Beta 2 (v73) and earlier does not validate the Common Name (CN) field for X.509 Certificates, which could allow remote attackers to spoof certificates.

## Which versions are affected by CVE-2003-0355?

It affects 2 products.


Products: Apple Safari, Kde Konqueror Embedded.

## How do I fix CVE-2003-0355?

No fix has been published for CVE-2003-0355 yet. Limit exposure of the affected software until one is available.

## Is CVE-2003-0355 being exploited?

There is no known exploitation of CVE-2003-0355 in the wild and no public exploit code.

## Other vulnerabilities in Apple Safari

- [CVE-2015-5780](https://insights.sbomify.com/CVE-2015-5780/): Security feature bypass in n/a (critical 10.0)
- [CVE-2014-1300](https://insights.sbomify.com/CVE-2014-1300/): Code injection in n/a (critical 10.0)
- [CVE-2014-1303](https://insights.sbomify.com/CVE-2014-1303/): Memory corruption in n/a (critical 10.0)
- [CVE-2010-1120](https://insights.sbomify.com/CVE-2010-1120/): Code injection in n/a (critical 10.0)
- [CVE-2009-0137](https://insights.sbomify.com/CVE-2009-0137/): Cross-site scripting in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2003-0355 and fix it if it is affected.

What it is: CVE-2003-0355 is a medium-severity vulnerability in Apple Safari, published on 30 May 2003. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2003-0355 in the wild and no public exploit code.

Affected product: Apple Safari. 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-2003-0355/ (Markdown: https://insights.sbomify.com/CVE-2003-0355/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2003-0355
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2003-0355
- OSV: https://osv.dev/vulnerability/CVE-2003-0355

---
From sbomify Insights: https://insights.sbomify.com/CVE-2003-0355/
Summaries are generated and may contain mistakes; the official description above is the record.