# CVE-2011-2729: Security feature bypass in n/a

> Remote attackers can bypass file read permissions in Apache Tomcat via jsvc because it fails to drop capabilities.

- **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:** Yes
- **Published:** 15 Aug 2011
- **Updated:** 6 Aug 2024
- **Also known as:** DEBIAN-CVE-2011-2729, GHSA-7mg3-pr99-8rh7, RHSA-2011:1292, openSUSE-SU-2024:10167-1

## What is CVE-2011-2729?

CVE-2011-2729 is a medium-severity vulnerability in Apache Tomcat, published on 15 Aug 2011. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

native/unix/native/jsvc-unix.c in jsvc in the Daemon component 1.0.3 through 1.0.6 in Apache Commons, as used in Apache Tomcat 5.5.32 through 5.5.33, 6.0.30 through 6.0.32, and 7.0.x before 7.0.20 on Linux, does not drop capabilities, which allows remote attackers to bypass read permissions for files via a request to an application.

Weakness: CWE-264

## Which versions are affected by CVE-2011-2729?

It affects 2 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `jakarta-commons-daemon-jsvc` | Red Hat:jboss_enterprise_web_server:1::el4 | All versions | 1:1.0.5-1.5.patch01.ep5.el4 |
| `jakarta-commons-daemon-jsvc-debuginfo` | Red Hat:jboss_enterprise_web_server:1::el4 | All versions | 1:1.0.5-1.5.patch01.ep5.el4 |
| `apache-commons-daemon` | openSUSE:Tumbleweed | All versions | 1.0.15-7.7 |

Products: Apache Apache Commons Daemon, Apache Tomcat.

## How do I fix CVE-2011-2729?

Upgrade to a fixed version.

## Is CVE-2011-2729 being exploited?

There is no known exploitation of CVE-2011-2729 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-2729 and fix it if it is affected.

What it is: CVE-2011-2729 is a medium-severity vulnerability in Apache Tomcat, published on 15 Aug 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-2011-2729 in the wild and no public exploit code.

Affected product: Apache Tomcat. 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-2011-2729/ (Markdown: https://insights.sbomify.com/CVE-2011-2729/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-2729
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-2729
- OSV: https://osv.dev/vulnerability/CVE-2011-2729

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-2729/
Summaries are generated and may contain mistakes; the official description above is the record.