CVE-2018-1002205 DotNetZip Zip-Slip Vulnerability
Attackers can write arbitrary files via Zip-Slip in DotNetZip, potentially leading to code execution or data modification.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2018-1002205?
CVE-2018-1002205 is a medium-severity path traversal vulnerability in DotNetZip.Semvered, published on 25 Jul 2018. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
DotNetZip.Semvered before 1.11.0 is vulnerable to directory traversal, allowing attackers to write to arbitrary files via a ../ (dot dot slash) in a Zip archive entry that is mishandled during extraction. This vulnerability is also known as 'Zip-Slip'.
Weakness: CWE-22
Which versions are affected by CVE-2018-1002205?
2 open source packages ship an affected version, including DotNetZip. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
DotNetZip NuGet | All versions | 1.11.0 |
DotNetZip NuGet | All versions | 1.11.0 |
Products include Dotnetzip.semverd Project Dotnetzip.semverd.
How do I fix CVE-2018-1002205?
Upgrade DotNetZip to 1.11.0 or later.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2018-1002205 being exploited?
There is no known exploitation of CVE-2018-1002205 in the wild and no public exploit code.
Other vulnerabilities in DotNetZip.Semvered
Sources
Also known as GHSA-7378-6268-4278, SNYK-DOTNET-DOTNETZIP-60245.