# CVE-2011-2054: Cisco ASA Secondary Authentication Bypass Vulnerability

> Remote attackers with valid primary credentials can bypass secondary LDAP authentication by submitting a blank password, gaining unauthorized access.

- **Severity:** Medium 4.3 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 19 Feb 2020
- **Updated:** 15 Nov 2024
- **Also known as:** GHSA-8w62-hmc9-cq72, openSUSE-SU-2024:10046-1

## What is CVE-2011-2054?

CVE-2011-2054 is a medium-severity authentication bypass vulnerability in Cisco ASA, published on 19 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A vulnerability in the Cisco ASA that could allow a remote attacker to successfully authenticate using the Cisco AnyConnect VPN client if the Secondary Authentication type is LDAP and the password is left blank, providing the primary credentials are correct. The vulnerabilities is due to improper input validation of certain parameters passed to the affected software. An attacker must have the correct primary credentials in order to successfully exploit this vulnerability.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2011-2054?

It affects 12 products.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `libsoup` | openSUSE:Tumbleweed | All versions | 2.56.0-1.1 |

Products: Cisco Asa 5500 Firmware, Cisco Asa 5510 Firmware, Cisco Asa 5512-X Firmware, Cisco Asa 5515-X Firmware, Cisco Asa 5520 Firmware, Cisco Asa 5525-X Firmware, Cisco Asa 5540 Firmware, Cisco Asa 5545-X Firmware, Cisco Asa 5550 Firmware, Cisco Asa 5555-X Firmware, Cisco Asa 5580 Firmware, Cisco Asa 5585-X Firmware.

## How do I fix CVE-2011-2054?

Apply the vendor's patch.

## Is CVE-2011-2054 being exploited?

There is no known exploitation of CVE-2011-2054 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2011-2054 and fix it if it is affected.

What it is: CVE-2011-2054 is a medium-severity authentication bypass vulnerability in Cisco ASA, published on 19 Feb 2020. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2011-2054 in the wild and no public exploit code.

Affected product: Cisco ASA. 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-2011-2054/ (Markdown: https://insights.sbomify.com/CVE-2011-2054/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2011-2054
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2011-2054
- OSV: https://osv.dev/vulnerability/CVE-2011-2054

---
From sbomify Insights: https://insights.sbomify.com/CVE-2011-2054/
Summaries are generated and may contain mistakes; the official description above is the record.