# CVE-2019-16205: Weak cryptography in Brocade SANnav

> Remote attackers can brute-force session IDs due to insufficient randomness, potentially taking over user accounts in Brocade SANnav.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 8 Nov 2019
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-q849-p2cf-42j8

## What is CVE-2019-16205?

CVE-2019-16205 is a high-severity vulnerability in Broadcom Brocade Sannav, published on 8 Nov 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

A vulnerability, in Brocade SANnav versions before v2.0, could allow remote attackers to brute-force a valid session ID. The vulnerability is due to an insufficiently random session ID for several post-authentication actions in the SANnav portal.

Weakness: CWE-330 (Use of Insufficiently Random Values)

## Which versions are affected by CVE-2019-16205?

It affects 1 product.


Products: Broadcom Brocade Sannav.

## How do I fix CVE-2019-16205?

No fix has been published for CVE-2019-16205 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-16205 being exploited?

There is no known exploitation of CVE-2019-16205 in the wild and no public exploit code.

## Other vulnerabilities in Broadcom Brocade Sannav

- [CVE-2019-16211](https://insights.sbomify.com/CVE-2019-16211/): Hardcoded credentials in Brocade SANnav (critical 9.8)
- [CVE-2024-3596](https://insights.sbomify.com/CVE-2024-3596/): RADIUS Protocol under RFC2865 is vulnerable to forgery attacks. (critical 9.0)
- [CVE-2019-16212](https://insights.sbomify.com/CVE-2019-16212/): A vulnerability in Brocade SANnav versions before v2.1.0 could allow a remote authenticated attacker to conduct an LDAP injection. (high 8.8)
- [CVE-2024-2240](https://insights.sbomify.com/CVE-2024-2240/): Docker implementation in Brocade SANnav is missing Audit Rules. (high 8.6)
- [CVE-2025-1053](https://insights.sbomify.com/CVE-2025-1053/): Brocade SANnav encryption key is logged in the debug logs (high 8.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-16205 and fix it if it is affected.

What it is: CVE-2019-16205 is a high-severity vulnerability in Broadcom Brocade Sannav, published on 8 Nov 2019. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2019-16205 in the wild and no public exploit code.

Affected product: Broadcom Brocade Sannav. 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-2019-16205/ (Markdown: https://insights.sbomify.com/CVE-2019-16205/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-16205
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-16205
- OSV: https://osv.dev/vulnerability/CVE-2019-16205

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-16205/
Summaries are generated and may contain mistakes; the official description above is the record.