# CVE-2010-3972: Memory corruption in n/a

> Remote attackers can execute arbitrary code or crash the service via a crafted FTP command due to a heap buffer overflow in Microsoft IIS FTP Service.

- **Severity:** Critical 10.0 (`AV:N/AC:L/Au:N/C:C/I:C/A:C`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 23 Dec 2010
- **Updated:** 7 Aug 2024
- **Also known as:** GHSA-h3w5-fw47-vrgr

## What is CVE-2010-3972?

CVE-2010-3972 is a critical memory corruption vulnerability in Microsoft Internet Information Services, published on 23 Dec 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Heap-based buffer overflow in the TELNET_STREAM_CONTEXT::OnSendData function in ftpsvc.dll in Microsoft FTP Service 7.0 and 7.5 for Internet Information Services (IIS) 7.0, and IIS 7.5, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a crafted FTP command, aka "IIS FTP Service Heap Buffer Overrun Vulnerability." NOTE: some of these details are obtained from third party information.

Weakness: CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

## Which versions are affected by CVE-2010-3972?

It affects 1 product.


Products: Microsoft Internet Information Services.

## How do I fix CVE-2010-3972?

No fix has been published for CVE-2010-3972 yet. Limit exposure of the affected software until one is available.

## Is CVE-2010-3972 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-3972 exists.

Public exploit code:

- Microsoft IIS 7.5 (Windows 7) - FTPSVC Unauthorized Remote Denial of Service (PoC) (exploitdb)
- Microsoft IIS FTP Server Encoded Response Overflow Trigger (metasploit)

## Other vulnerabilities in Microsoft Internet Information Services

- [CVE-2017-7269](https://insights.sbomify.com/CVE-2017-7269/): Microsoft Windows Server Buffer Overflow (critical 9.8, exploited in the wild)
- [CVE-2008-4301](https://insights.sbomify.com/CVE-2008-4301/): Other in n/a (critical 10.0)
- [CVE-2007-2815](https://insights.sbomify.com/CVE-2007-2815/): The "hit-highlighting" functionality in webhits.dll in Microsoft Internet Information Services (IIS) Web Server 5.0 only uses Windows NT ACL (critical 10.0)
- [CVE-2003-0224](https://insights.sbomify.com/CVE-2003-0224/): Buffer overflow in ssinc.dll for Microsoft Internet Information Services (IIS) 5.0 allows local users to execute arbitrary code via a web pa (critical 10.0)
- [CVE-1999-0233](https://insights.sbomify.com/CVE-1999-0233/): IIS 1.0 allows users to execute arbitrary commands using .bat or .cmd files. (critical 10.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2010-3972 and fix it if it is affected.

What it is: CVE-2010-3972 is a critical memory corruption vulnerability in Microsoft Internet Information Services, published on 23 Dec 2010. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2010-3972 exists.

Affected product: Microsoft Internet Information Services. 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-2010-3972/ (Markdown: https://insights.sbomify.com/CVE-2010-3972/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2010-3972
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2010-3972
- OSV: https://osv.dev/vulnerability/CVE-2010-3972

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From sbomify Insights: https://insights.sbomify.com/CVE-2010-3972/
Summaries are generated and may contain mistakes; the official description above is the record.