# CVE-2019-1646: Privilege Escalation Vulnerability in Cisco SD-WAN Solution

> An authenticated local attacker can escalate privileges via unsanitized CLI commands to modify configurations and access sensitive data.

- **Severity:** High 7.8 (`CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 24 Jan 2019
- **Updated:** 20 Nov 2024
- **Also known as:** GHSA-xphx-jp87-55x8

## What is CVE-2019-1646?

CVE-2019-1646 is a high-severity vulnerability in Cisco SD-WAN Solution, published on 24 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.

### Official description

A vulnerability in the local CLI of the Cisco SD-WAN Solution could allow an authenticated, local attacker to escalate privileges and modify device configuration files. The vulnerability exists because user input is not properly sanitized for certain commands at the CLI. An attacker could exploit this vulnerability by sending crafted commands to the CLI of an affected device. A successful exploit could allow the attacker to establish an interactive session with elevated privileges. The attacker could then use the elevated privileges to further compromise the device or obtain additional configuration data from the device.

Weakness: CWE-77 (Improper Neutralization of Special Elements used in a Command), CWE-264

## Which versions are affected by CVE-2019-1646?

It affects 8 products.


Products: Cisco Sd-Wan, Cisco Vbond Orchestrator, Cisco Vedge 1000 Firmware, Cisco Vedge 100 Firmware, Cisco Vedge 2000 Firmware, Cisco Vedge 5000 Firmware, Cisco Vmanage Network Management, Cisco Vsmart Controller.

## How do I fix CVE-2019-1646?

No fix has been published for CVE-2019-1646 yet. Limit exposure of the affected software until one is available.

## Is CVE-2019-1646 being exploited?

There is no known exploitation of CVE-2019-1646 in the wild and no public exploit code.

## Other vulnerabilities in Cisco SD-WAN Solution

- [CVE-2020-3374](https://insights.sbomify.com/CVE-2020-3374/): Cisco SD-WAN vManage Software Authorization Bypass Vulnerability (critical 9.9)
- [CVE-2018-15387](https://insights.sbomify.com/CVE-2018-15387/): Cisco SD-WAN Solution Certificate Validation Bypass Vulnerability (critical 9.8)
- [CVE-2019-1624](https://insights.sbomify.com/CVE-2019-1624/): Cisco SD-WAN Solution Command Injection Vulnerability (high 8.8)
- [CVE-2019-1650](https://insights.sbomify.com/CVE-2019-1650/): Cisco SD-WAN Solution Arbitrary File Overwrite Vulnerability (high 8.8)
- [CVE-2020-3180](https://insights.sbomify.com/CVE-2020-3180/): Cisco SD-WAN Solution Software Static Credentials Vulnerability (high 8.4)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2019-1646 and fix it if it is affected.

What it is: CVE-2019-1646 is a high-severity vulnerability in Cisco SD-WAN Solution, published on 24 Jan 2019. It can only be exploited from the same machine or local network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2019-1646 in the wild and no public exploit code.

Affected product: Cisco SD-WAN Solution. 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-2019-1646/ (Markdown: https://insights.sbomify.com/CVE-2019-1646/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2019-1646
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2019-1646
- OSV: https://osv.dev/vulnerability/CVE-2019-1646

---
From sbomify Insights: https://insights.sbomify.com/CVE-2019-1646/
Summaries are generated and may contain mistakes; the official description above is the record.