# CVE-2012-3742: Security feature bypass in n/a

> Remote attackers can spoof HTTPS connections in iOS Safari by using a Unicode character that mimics the lock indicator in page titles.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:N/I:P/A:N`)
- **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:** 20 Sep 2012
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-8qp8-cphr-rp5h, UBUNTU-CVE-2012-3742

## What is CVE-2012-3742?

CVE-2012-3742 is a medium-severity vulnerability in Apple Iphone Os, published on 20 Sep 2012. 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 in Apple iOS before 6 does not properly restrict use of an unspecified Unicode character that looks similar to the https lock indicator, which allows remote attackers to spoof https connections by placing this character in the TITLE element of a web page.

Weakness: CWE-264

## Which versions are affected by CVE-2012-3742?

It affects 1 product.


Products: Apple Iphone Os.

## How do I fix CVE-2012-3742?

No fix has been published for CVE-2012-3742 yet. Limit exposure of the affected software until one is available.

## Is CVE-2012-3742 being exploited?

There is no known exploitation of CVE-2012-3742 in the wild and no public exploit code.

## Other vulnerabilities in Apple Iphone Os

- [CVE-2021-30666](https://insights.sbomify.com/CVE-2021-30666/): Apple iOS WebKit Buffer Overflow (high 8.8, exploited in the wild)
- [CVE-2021-30761](https://insights.sbomify.com/CVE-2021-30761/): Apple iOS WebKit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2021-30762](https://insights.sbomify.com/CVE-2021-30762/): Apple iOS WebKit Use-After-Free (high 8.8, exploited in the wild)
- [CVE-2016-4657](https://insights.sbomify.com/CVE-2016-4657/): Apple iOS Webkit Memory Corruption (high 8.8, exploited in the wild)
- [CVE-2019-7286](https://insights.sbomify.com/CVE-2019-7286/): Apple Multiple Products Memory Corruption (high 7.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2012-3742 and fix it if it is affected.

What it is: CVE-2012-3742 is a medium-severity vulnerability in Apple Iphone Os, published on 20 Sep 2012. 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-2012-3742 in the wild and no public exploit code.

Affected product: Apple Iphone Os. 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-2012-3742/ (Markdown: https://insights.sbomify.com/CVE-2012-3742/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2012-3742
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2012-3742
- OSV: https://osv.dev/vulnerability/CVE-2012-3742

---
From sbomify Insights: https://insights.sbomify.com/CVE-2012-3742/
Summaries are generated and may contain mistakes; the official description above is the record.