# CVE-2021-30651: Information disclosure in Symantec Messaging Gateway (SMG)

> An authenticated administrator can access unauthorized LDAP/Active Directory passwords, exposing sensitive credentials.

- **Severity:** Medium 4.9 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jun 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-cm55-jg7j-pgwp

## What is CVE-2021-30651?

CVE-2021-30651 is a medium-severity vulnerability in Symantec Messaging Gateway (SMG), published on 24 Jun 2022. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

A malicious authenticated SMG administrator user can obtain passwords for external LDAP/Active Directory servers that they might not otherwise be authorized to access.

## Which versions are affected by CVE-2021-30651?

It affects 1 product.


Products: Broadcom Symantec Messaging Gateway.

## How do I fix CVE-2021-30651?

No fix has been published for CVE-2021-30651 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-30651 being exploited?

There is no known exploitation of CVE-2021-30651 in the wild and no public exploit code.

## Other vulnerabilities in Symantec Messaging Gateway (SMG)

- [CVE-2014-0160](https://insights.sbomify.com/CVE-2014-0160/): OpenSSL Information Disclosure (high 7.5, exploited in the wild)
- [CVE-2024-23614](https://insights.sbomify.com/CVE-2024-23614/): Symantec Messaging Gateway Buffer Overflow (critical 10.0)
- [CVE-2024-23615](https://insights.sbomify.com/CVE-2024-23615/): Symantec Messaging Gateway Buffer Overflow (critical 10.0)
- [CVE-2020-12594](https://insights.sbomify.com/CVE-2020-12594/): Privilege escalation in Symantec Messaging Gateway (SMG) (high 7.2)
- [CVE-2020-12595](https://insights.sbomify.com/CVE-2020-12595/): Information disclosure in Symantec Messaging Gateway (SMG) (medium 4.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-30651 and fix it if it is affected.

What it is: CVE-2021-30651 is a medium-severity vulnerability in Symantec Messaging Gateway (SMG), published on 24 Jun 2022. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-30651 in the wild and no public exploit code.

Affected product: Symantec Messaging Gateway (SMG). 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-2021-30651/ (Markdown: https://insights.sbomify.com/CVE-2021-30651/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-30651
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-30651
- OSV: https://osv.dev/vulnerability/CVE-2021-30651

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-30651/
Summaries are generated and may contain mistakes; the official description above is the record.