# CVE-2016-1543: Auth bypass in n/a

> Remote attackers can bypass authorization in the RSCD agent to reset arbitrary user passwords, leading to account takeover.

- **Severity:** High 7.5 (`CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 13 Jun 2016
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-6773-9q85-x9gw

## What is CVE-2016-1543?

CVE-2016-1543 is a high-severity authentication bypass vulnerability in n/a, published on 13 Jun 2016. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The RPC API in the RSCD agent in BMC BladeLogic Server Automation (BSA) 8.2.x, 8.3.x, 8.5.x, 8.6.x, and 8.7.x on Linux and UNIX allows remote attackers to bypass authorization and reset arbitrary user passwords by sending an action packet to xmlrpc after an authorization failure.

Weakness: CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2016-1543?

It affects 1 product.


Products: Bmc Bladelogic Server Automation Console.

## How do I fix CVE-2016-1543?

No fix has been published for CVE-2016-1543 yet. Limit exposure of the affected software until one is available.

## Is CVE-2016-1543 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2016-1543 exists.

Public exploit code:

- BMC Server Automation RSCD Agent NSH Remote Command Execution (metasploit)
- BMC BladeLogic 8.3.00.64 - Remote Command Execution (exploitdb)
- BMC Server Automation RSCD Agent - NSH Remote Command Execution (Metasploit) (exploitdb)

## Other vulnerabilities in n/a

- [CVE-2016-4322](https://insights.sbomify.com/CVE-2016-4322/): Auth bypass in n/a (critical 9.8)
- [CVE-2016-1542](https://insights.sbomify.com/CVE-2016-1542/): Missing authorization in n/a (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2016-1543 and fix it if it is affected.

What it is: CVE-2016-1543 is a high-severity authentication bypass vulnerability in n/a, published on 13 Jun 2016. 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-2016-1543 exists.

Affected product: n/a. 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-2016-1543/ (Markdown: https://insights.sbomify.com/CVE-2016-1543/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2016-1543
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2016-1543
- OSV: https://osv.dev/vulnerability/CVE-2016-1543

---
From sbomify Insights: https://insights.sbomify.com/CVE-2016-1543/
Summaries are generated and may contain mistakes; the official description above is the record.