# CVE-2015-0993: Auth bypass in n/a

> Remote attackers can bypass access restrictions by leveraging an unattended workstation due to sessions not terminating on logout.

- **Severity:** Medium 6.4 (`AV:N/AC:L/Au:N/C:P/I:P/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 3 Apr 2015
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-vjx9-qrpm-m3rw

## What is CVE-2015-0993?

CVE-2015-0993 is a medium-severity authentication bypass vulnerability in n/a, published on 3 Apr 2015. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Inductive Automation Ignition 7.7.2 does not terminate a session upon a logout action, which allows remote attackers to bypass intended access restrictions by leveraging an unattended workstation.

Weakness: CWE-254

## Which versions are affected by CVE-2015-0993?

It affects 1 product.


Products: Inductiveautomation Ignition.

## How do I fix CVE-2015-0993?

No fix has been published for CVE-2015-0993 yet. Limit exposure of the affected software until one is available.

## Is CVE-2015-0993 being exploited?

There is no known exploitation of CVE-2015-0993 in the wild and no public exploit code.

## Other vulnerabilities in n/a

- [CVE-2023-39475](https://insights.sbomify.com/CVE-2023-39475/): Deserialization in Ignition (critical 9.8)
- [CVE-2023-39476](https://insights.sbomify.com/CVE-2023-39476/): Deserialization in Ignition (critical 9.8)
- [CVE-2022-35890](https://insights.sbomify.com/CVE-2022-35890/): Auth bypass in n/a (critical 9.8)
- [CVE-2023-39473](https://insights.sbomify.com/CVE-2023-39473/): Deserialization in Ignition (high 8.8)
- [CVE-2023-50218](https://insights.sbomify.com/CVE-2023-50218/): Inductive Automation Ignition ModuleInvoke Deserialization of Untrusted Data Remote Code Execution Vulnerability (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2015-0993 and fix it if it is affected.

What it is: CVE-2015-0993 is a medium-severity authentication bypass vulnerability in n/a, published on 3 Apr 2015. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2015-0993 in the wild and no public exploit code.

Affected product: n/a. 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-2015-0993/ (Markdown: https://insights.sbomify.com/CVE-2015-0993/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2015-0993
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2015-0993
- OSV: https://osv.dev/vulnerability/CVE-2015-0993

---
From sbomify Insights: https://insights.sbomify.com/CVE-2015-0993/
Summaries are generated and may contain mistakes; the official description above is the record.