Cookie Injection Vulnerability in curl Package: CVE-2016-8615
Summary
ALPINE-CVE-2016-8615: A flaw was found in curl before version 7.51. Affects curl versions < 7.51.0-r0. Fixed in 7.51.0-r0. How to fix ↓
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Background
curl is a widely used command-line tool and library for transferring data with URLs. It supports various protocols including HTTP, HTTPS, FTP, and more. curl is known for its versatility and is commonly used in web applications and services. However, a vulnerability was discovered that allows malicious servers to inject cookies into a user's cookie jar, potentially compromising user sessions and data integrity.
Vulnerability Detail
A flaw was found in curl before version 7.51. If cookie state is written into a cookie jar file that is later read back and used for subsequent requests, a malicious HTTP server can inject new cookies for arbitrary domains into said cookie jar. This could lead to unauthorized access to user sessions or sensitive information, as the injected cookies may be used to impersonate users or perform actions on their behalf.
How To Fix
Minimum fixed version
7.51.0-r0
This is the first release that contains the fix.
sudo apk add --upgrade curlTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, avoid using cookie jars or ensure that cookies are not written to disk. This can be done by managing cookies in memory only during the session.
Conclusion
The vulnerability CVE-2016-8615 in the curl package poses a significant risk by allowing malicious servers to inject cookies into a user's cookie jar. It is crucial to update to the patched versions of curl to mitigate this risk and ensure the security of user sessions.
See every vulnerability recorded for curl →
FAQ
CVE-2016-8615 is a vulnerability in the curl package that allows malicious servers to inject cookies into a user's cookie jar, potentially compromising user sessions.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without requiring any signup.
The CVSS score of this vulnerability is 7.5, indicating a high severity level.
If you cannot update curl immediately, consider using a workaround by avoiding the use of cookie jars or managing cookies in memory only.
You can visit Vulert at https://vulert.com, which monitors and alerts for open-source vulnerabilities in your software using just a manifest file.
References
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