# CVE-2015-0812: Security feature bypass in n/a

> Man-in-the-middle attackers can bypass user confirmation for lightweight theme installations by exploiting lack of HTTPS enforcement in Firefox.

- **Severity:** Medium 4.3 (`AV:N/AC:M/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:** Yes
- **Published:** 1 Apr 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-xp29-g429-j593, UBUNTU-CVE-2015-0812

## What is CVE-2015-0812?

CVE-2015-0812 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 1 Apr 2015. 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

Mozilla Firefox before 37.0 does not require an HTTPS session for lightweight theme add-on installations, which allows man-in-the-middle attackers to bypass an intended user-confirmation requirement by deploying a crafted web site and conducting a DNS spoofing attack against a mozilla.org subdomain.

Weakness: CWE-17

## Which versions are affected by CVE-2015-0812?

It affects 3 products.


Products: Canonical Ubuntu Linux, Mozilla Firefox, Opensuse Opensuse.

## How do I fix CVE-2015-0812?

Upgrade to a fixed version.

## Is CVE-2015-0812 being exploited?

There is no known exploitation of CVE-2015-0812 in the wild and no public exploit code.

## Other vulnerabilities in Canonical Ubuntu Linux

- [CVE-2020-11651](https://insights.sbomify.com/CVE-2020-11651/): SaltStack Salt Authentication Bypass (critical 9.8, exploited in the wild)
- [CVE-2020-7247](https://insights.sbomify.com/CVE-2020-7247/): OpenSMTPD Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2019-16928](https://insights.sbomify.com/CVE-2019-16928/): Exim Out-of-bounds Write (critical 9.8, exploited in the wild)
- [CVE-2018-6789](https://insights.sbomify.com/CVE-2018-6789/): Exim Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2015-2590](https://insights.sbomify.com/CVE-2015-2590/): Oracle Java SE and Java SE Embedded Remote Code Execution (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-0812 and fix it if it is affected.

What it is: CVE-2015-0812 is a medium-severity vulnerability in Canonical Ubuntu Linux, published on 1 Apr 2015. 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-2015-0812 in the wild and no public exploit code.

Affected product: Canonical Ubuntu Linux. 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-2015-0812/ (Markdown: https://insights.sbomify.com/CVE-2015-0812/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-0812
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-0812
- OSV: https://osv.dev/vulnerability/CVE-2015-0812

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-0812/
Summaries are generated and may contain mistakes; the official description above is the record.