# CVE-2018-0449: Cisco Jabber Client Framework Insecure Directory Permissions Vulnerability

> Local attackers can corrupt arbitrary files or escalate privileges by exploiting insecure directory permissions in Cisco Jabber for Mac.

- **Severity:** Medium 5.1 (`CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Local or same network only
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 10 Jan 2019
- **Updated:** 21 Nov 2024
- **Also known as:** GHSA-f582-3xw4-gr8w

## What is CVE-2018-0449?

CVE-2018-0449 is a medium-severity vulnerability in Cisco Jabber for Mac, published on 10 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 Cisco Jabber Client Framework (JCF) software, installed as part of the Cisco Jabber for Mac client, could allow an authenticated, local attacker to corrupt arbitrary files on an affected device that has elevated privileges. The vulnerability exists due to insecure directory permissions set on a JCF created directory. An authenticated attacker with the ability to access an affected directory could create a hard link to an arbitrary location on the affected system. An attacker could convince another user that has administrative privileges to perform an install or update the Cisco Jabber for Mac client to perform such actions, allowing files to be created in an arbitrary location on the disk or an arbitrary file to be corrupted when it is appended to or overwritten.

Weakness: CWE-732 (Incorrect Permission Assignment for Critical Resource), CWE-275

## Which versions are affected by CVE-2018-0449?

It affects 1 product.


Products: Cisco Jabber.

## How do I fix CVE-2018-0449?

No fix has been published for CVE-2018-0449 yet. Limit exposure of the affected software until one is available.

## Is CVE-2018-0449 being exploited?

There is no known exploitation of CVE-2018-0449 in the wild and no public exploit code.

## Other vulnerabilities in Cisco Jabber for Mac

- [CVE-2021-1411](https://insights.sbomify.com/CVE-2021-1411/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1417](https://insights.sbomify.com/CVE-2021-1417/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1418](https://insights.sbomify.com/CVE-2021-1418/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1469](https://insights.sbomify.com/CVE-2021-1469/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)
- [CVE-2021-1471](https://insights.sbomify.com/CVE-2021-1471/): Cisco Jabber Desktop and Mobile Client Software Vulnerabilities (critical 9.9)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-0449 and fix it if it is affected.

What it is: CVE-2018-0449 is a medium-severity vulnerability in Cisco Jabber for Mac, published on 10 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-2018-0449 in the wild and no public exploit code.

Affected product: Cisco Jabber for Mac. 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-2018-0449/ (Markdown: https://insights.sbomify.com/CVE-2018-0449/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-0449
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-0449
- OSV: https://osv.dev/vulnerability/CVE-2018-0449

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-0449/
Summaries are generated and may contain mistakes; the official description above is the record.