T08 · Insecure Dependencies
Warning
- Location
- requirements.txt:1
- Finding
- Unpinned and Unnecessary Third-Party Dependencies## Vulnerability Details **File Location**: `requirements.txt:1-6` **Vulnerability Type**: `T08: Insecure Dependencies` **Risk Level**: Medium ### Vulnerable Code ```text easyofd PyMuPDF Pillow reportlab xmltodict loguru ``` ### Technical Analysis Every Python dependency is specified without an exact version or an integrity hash. Consequently, separate installations can resolve to different package versions, and future releases will be trusted without being reviewed by this project. In addition, `reportlab`, `xmltodict`, and `loguru` are not imported directly by `pdf2ofd.py`. Unless they are required for an external integration not present in the audited project, retaining these packages unnecessarily expands the dependency and installation attack surface. No evidence was found that any currently named dependency is malicious. The security issue is the lack of dependency version and integrity controls, not a confirmed compromise of a particular package. ### Attack Path 1. An attacker compromises an upstream dependency account, distribution artifact, or release process. 2. The attacker publishes a malicious version under one of the dependency names in `requirements.txt`. 3. A user or deployment pipeline executes `pip install -r requirements.txt`. 4. Because no exact version or hash is required, the package resolver may select the malicious release. 5. Malicious installation or runtime code executes with the permissions of the installing or converter process. ### Impact Assessment Successful exploitation through a compromised dependency could permit arbitrary code execution with the privileges of the account installing or running the converter. Depending on its deployment context, this could expose local files, input documents, output documents, environment variables, and credentials accessible to that account. This issue does not independently provide privilege escalation. Its scope is bounded by the pe ...[truncated 89 chars]
- Remediation
- ## Remediation Suggestions 1. Remove direct dependencies that are not required by the application. Confirm whether `reportlab`, `xmltodict`, and `loguru` are needed transitively or by an undocumented integration before retaining them. 2. Pin every direct and transitive dependency to an exact, reviewed version. 3. Generate a reproducible lock file with cryptographic hashes, such as a hash-locked requirements file produced by `pip-tools`. 4. Install dependencies with hash verification, for example through `pip install --require-hashes`. 5. Use a private or controlled package index where appropriate and explicitly configure trusted package sources. 6. Scan locked dependencies for known vulnerabilities in CI and review updates before merging them. 7. Build and execute the converter in a minimally privileged, isolated environment so that a dependency compromise has limited impact.