# CVE-2011-3502: Information disclosure in n/a

> Remote attackers can obtain source code of executable files by sending requests with trailing spaces or encoded dots.

- **Severity:** Medium 5.0 (`AV:N/AC:L/Au:N/C:P/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 16 Sep 2011
- **Updated:** 16 Sep 2024
- **Also known as:** GHSA-wjgg-xm9w-7wc5

## What is CVE-2011-3502?

CVE-2011-3502 is a medium-severity vulnerability in n/a, published on 16 Sep 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The web server in Cogent DataHub 7.1.1.63 and earlier allows remote attackers to obtain the source code of executable files via a request with a trailing (1) space or (2) %2e (encoded dot).

Weakness: CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2011-3502?

It affects 1 product.


Products: Cogentdatahub Cogent Datahub.

## How do I fix CVE-2011-3502?

No fix has been published for CVE-2011-3502 yet. Limit exposure of the affected software until one is available.

## Is CVE-2011-3502 being exploited?

There is no known exploitation of CVE-2011-3502 in the wild and no public exploit code.

Public exploit code:

- Cogent DataHub 7.1.1.63 - Source Disclosure (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2011-3493](https://insights.sbomify.com/CVE-2011-3493/): Memory corruption in n/a (critical 10.0)
- [CVE-2016-2288](https://insights.sbomify.com/CVE-2016-2288/): Privilege escalation in n/a (high 7.8)
- [CVE-2014-2352](https://insights.sbomify.com/CVE-2014-2352/): Cogent DataHub Path Traversal (high 7.8)
- [CVE-2014-3788](https://insights.sbomify.com/CVE-2014-3788/): Heap-based buffer overflow in the Web Server in Cogent Real-Time Systems Cogent DataHub before 7.3.5 allows remote attackers to execute arbi (high 7.5)
- [CVE-2014-3789](https://insights.sbomify.com/CVE-2014-3789/): GetPermissions.asp in Cogent Real-Time Systems Cogent DataHub before 7.3.5 allows remote attackers to execute arbitrary commands via unspecified vectors. (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-3502 and fix it if it is affected.

What it is: CVE-2011-3502 is a medium-severity vulnerability in n/a, published on 16 Sep 2011. 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-2011-3502 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-2011-3502/ (Markdown: https://insights.sbomify.com/CVE-2011-3502/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-3502
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-3502
- OSV: https://osv.dev/vulnerability/CVE-2011-3502

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-3502/
Summaries are generated and may contain mistakes; the official description above is the record.