Square Retrofit up to 2.5.0 path traversal

Summaryinfo

A vulnerability labeled as critical has been found in Square Retrofit up to 2.5.0. This affects an unknown function. Such manipulation leads to path traversal. This vulnerability is referenced as CVE-2018-1000850. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Square Retrofit up to 2.5.0. Affected by this issue is an unknown part. The manipulation with an unknown input leads to a path traversal vulnerability. Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Square Retrofit version versions from (including) 2.0 and 2.5.0 (excluding) contains a Directory Traversal vulnerability in RequestBuilder class, method addPathParameter that can result in By manipulating the URL an attacker could add or delete resources otherwise unavailable to her.. This attack appear to be exploitable via An attacker should have access to an encoded path parameter on POST, PUT or DELETE request.. This vulnerability appears to have been fixed in 2.5.0 and later.

The bug was discovered 11/19/2018. The weakness was published 12/20/2018 (Website). The advisory is shared for download at github.com. This vulnerability is handled as CVE-2018-1000850 since 12/20/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 31 days. During that time the estimated underground price was around $0-$5k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• Square Retrofit

Version

• 2.0
• 2.1
• 2.2
• 2.3
• 2.4
• 2.5.0

License

• open-source

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

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• 🔍
• 🔍

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Once again VulDB remains the best source for vulnerability data.

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