# CVE-2014-2927: Auth bypass in n/a

> Remote attackers can read or write arbitrary files on F5 BIG-IP devices configured in failover mode due to missing authentication in the rsync daemon.

- **Severity:** Critical 9.3 (`AV:N/AC:M/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:** 15 Oct 2014
- **Updated:** 6 Aug 2024
- **Also known as:** GHSA-5ffj-x2ff-2jp7

## What is CVE-2014-2927?

CVE-2014-2927 is a critical authentication bypass vulnerability in F5 Big-Ip Access Policy Manager, published on 15 Oct 2014. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The rsync daemon in F5 BIG-IP 11.6 before 11.6.0, 11.5.1 before HF3, 11.5.0 before HF4, 11.4.1 before HF4, 11.4.0 before HF7, 11.3.0 before HF9, and 11.2.1 before HF11 and Enterprise Manager 3.x before 3.1.1 HF2, when configured in failover mode, does not require authentication, which allows remote attackers to read or write to arbitrary files via a cmi request to the ConfigSync IP address.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2014-2927?

It affects 19 products.


Products: F5 Arx, F5 Big-Ip Access Policy Manager, F5 Big-Ip Advanced Firewall Manager, F5 Big-Ip Analytics, F5 Big-Ip Application Acceleration Manager, F5 Big-Ip Application Security Manager, F5 Big-Ip Edge Gateway, F5 Big-Ip Global Traffic Manager, F5 Big-Ip Link Controller, F5 Big-Ip Local Traffic Manager, F5 Big-Ip Policy Enforcement Manager, F5 Big-Ip Protocol Security Module, F5 Big-Ip Wan Optimization Manager, F5 Big-Ip Webaccelerator, F5 Big-Iq Cloud, F5 Big-Iq Device, F5 Big-Iq Security, F5 Enterprise Manager, F5 Firepass.

## How do I fix CVE-2014-2927?

No fix has been published for CVE-2014-2927 yet. Limit exposure of the affected software until one is available.

## Is CVE-2014-2927 being exploited?

There is no known exploitation of CVE-2014-2927 in the wild and no public exploit code.

Public exploit code:

- F5 Big-IP - rsync Access (exploitdb)

## Other vulnerabilities in F5 Big-Ip Access Policy Manager

- [CVE-2011-3188](https://insights.sbomify.com/CVE-2011-3188/): Other in n/a (critical 9.1)
- [CVE-2013-3587](https://insights.sbomify.com/CVE-2013-3587/): Information disclosure in HTTPS protocol (medium 5.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2014-2927 and fix it if it is affected.

What it is: CVE-2014-2927 is a critical authentication bypass vulnerability in F5 Big-Ip Access Policy Manager, published on 15 Oct 2014. 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-2014-2927 in the wild and no public exploit code.

Affected product: F5 Big-Ip Access Policy Manager. 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-2014-2927/ (Markdown: https://insights.sbomify.com/CVE-2014-2927/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2014-2927
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2014-2927
- OSV: https://osv.dev/vulnerability/CVE-2014-2927

---
From sbomify Insights: https://insights.sbomify.com/CVE-2014-2927/
Summaries are generated and may contain mistakes; the official description above is the record.