# CVE-2007-0843: Information disclosure in n/a

> Local attackers can bypass file permissions to read sensitive metadata like filenames and access times via the ReadDirectoryChangesW API.

- **Severity:** Medium 4.6 (`AV:L/AC:L/Au:N/C:P/I:P/A:P`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Feb 2007
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-gwhq-68gv-8x93

## What is CVE-2007-0843?

CVE-2007-0843 is a medium-severity vulnerability in Microsoft Windows 2000, published on 23 Feb 2007. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

The ReadDirectoryChangesW API function on Microsoft Windows 2000, XP, Server 2003, and Vista does not check permissions for child objects, which allows local users to bypass permissions by opening a directory with LIST (READ) access and using ReadDirectoryChangesW to monitor changes of files that do not have LIST permissions, which can be leveraged to determine filenames, access times, and other sensitive information.

Weakness: CWE-264

## Which versions are affected by CVE-2007-0843?

It affects 4 products.


Products: Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Vista, Microsoft Windows Xp.

## How do I fix CVE-2007-0843?

No fix has been published for CVE-2007-0843 yet. Limit exposure of the affected software until one is available.

## Is CVE-2007-0843 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-0843 exists.

Public exploit code:

- Spydir is a small utility to monitor file changes in Windows directory regardless of subdirectory and files permissions (exploits CVE-2007-0843) (github_poc): https://github.com/z3APA3A/spydir
- Microsoft Windows XP/2003 - ReadDirectoryChangesW Information Disclosure (exploitdb)

## Other vulnerabilities in Microsoft Windows 2000

- [CVE-2008-4250](https://insights.sbomify.com/CVE-2008-4250/): Microsoft Windows Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2010-0232](https://insights.sbomify.com/CVE-2010-0232/): Microsoft Windows Kernel Exception Handler (high 7.8, exploited in the wild)
- [CVE-2009-1123](https://insights.sbomify.com/CVE-2009-1123/): Microsoft Windows Improper Input Validation (high 7.8, exploited in the wild)
- [CVE-2002-0367](https://insights.sbomify.com/CVE-2002-0367/): Microsoft Windows Privilege Escalation (high 7.8, exploited in the wild)
- [CVE-2010-0269](https://insights.sbomify.com/CVE-2010-0269/): Memory corruption in n/a (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2007-0843 and fix it if it is affected.

What it is: CVE-2007-0843 is a medium-severity vulnerability in Microsoft Windows 2000, published on 23 Feb 2007. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-0843 exists.

Affected product: Microsoft Windows 2000. 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-2007-0843/ (Markdown: https://insights.sbomify.com/CVE-2007-0843/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2007-0843
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2007-0843
- OSV: https://osv.dev/vulnerability/CVE-2007-0843

---
From sbomify Insights: https://insights.sbomify.com/CVE-2007-0843/
Summaries are generated and may contain mistakes; the official description above is the record.