Appdynamics / Appdynamics/Sample-Android-Application

MD5 is a weak hash known to have hash collisions.

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Dominant language
Kotlin
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Description

Dear AppDynamics Security Team,

I am writing to report a security vulnerability identified in our codebase that involves the usage of the MD5 hash function.
The vulnerability associated with the MD5 hash function is that it is susceptible to hash collisions, which occur when two different input values produce the same hash value. This makes it possible for attackers to create malicious data that has the same hash as legitimate data, allowing them to bypass security measures and potentially cause harm.

Affected Path:

com/appdynamics/eumagent/runtime/p000private/bg.java

com/downloader/utils/Utils.java com/itextpdf/text/ImgJBIG2.java

com/itextpdf/text/pdf/PdfEncryption.java com/itextpdf/text/pdf/PdfSmartCopy.java

**Additional Context:** This issue was discovered during an internal security audit, and we wanted to bring it to your attention for review and remediation.

If you require further details or technical support regarding this report, please feel free to reach out.

Thank you,
MBRHE

Contributor guide

No contributing guide indexed for this repository

Research direction

Start by inspecting MD5 usage in com/appdynamics/eumagent/runtime/p000private/bg.java, com/downloader/utils/Utils.java, and the listed iText PDF files. Determine which uses affect security-sensitive behavior and identify the appropriate remediation for each path. Done should address all reported MD5 uses without breaking the affected Android application behavior.

Written by the indexing model from the issue text.

Assessment

Tech stack
android, java, kotlin
Domain
cryptography, mobile, security
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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