GHSA-mpvw-25mg-59vx

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GHSA-mpvw-25mg-59vx

Summary: Server-side Request Forgery (SSRF) via img tags in reportlab

Details: All versions of package reportlab at time of writing are vulnerable to Server-side Request Forgery (SSRF) via img tags. In order to reduce risk, use trustedSchemes & trustedHosts (see in Reportlab's documentation) Steps to reproduce by Karan Bamal: 1. Download and install the latest package of reportlab 2. Go to demos -> odyssey -> dodyssey 3. In the text file odyssey.txt that needs to be converted to pdf inject `<img src="http://127.0.0.1:5000" valign="top"/>` 4. Create a nc listener `nc -lp 5000` 5. Run python3 dodyssey.py 6. You will get a hit on your nc showing we have successfully proceded to send a server side request 7. dodyssey.py will show error since there is no img file on the url, but we are able to do SSRF

References: https://nvd.nist.gov/vuln/detail/CVE-2020-28463, https://bugzilla.redhat.com/show_bug.cgi?id=1930417, https://github.com/advisories/GHSA-mpvw-25mg-59vx, https://github.com/pypa/advisory-database/tree/main/vulns/reportlab/PYSEC-2021-146.yaml, https://hg.reportlab.com/hg-public/reportlab, https://hg.reportlab.com/hg-public/reportlab/file/f094d273903a/CHANGES.md#l71, https://hg.reportlab.com/hg-public/reportlab/rev/7f2231703dc7, https://lists.debian.org/debian-lts-announce/2023/09/msg00037.html, https://lists.fedoraproject.org/archives/list/[email protected]/message/HMUJA5GZTPQ5WRYUCCK2GEZM4W43N7HH, https://lists.fedoraproject.org/archives/list/[email protected]/message/YZQSFCID67K6BTC655EQY6MNOF35QI44, https://snyk.io/vuln/SNYK-PYTHON-REPORTLAB-1022145, https://www.reportlab.com/docs/reportlab-userguide.pdf