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PYSEC-2019-105

Quick fix

PYSEC-2019-105 — modoboa-dmarc: upgrade to the fixed version with the command below.

pip install --upgrade 'modoboa-dmarc>=1.2.0'

Details

The modoboa-dmarc plugin 1.1.0 for Modoboa is vulnerable to an XML External Entity Injection (XXE) attack when processing XML data. A remote attacker could exploit this to perform a denial of service against the DMARC reporting functionality, such as by referencing the /dev/random file within XML documents that are emailed to the address in the rua field of the DMARC records of a domain.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/modoboa-dmarc

Introduced in: 0Fixed in: 1.2.0

Fixpip install --upgrade 'modoboa-dmarc>=1.2.0'

References

https://github.com/modoboa/modoboa-dmarc/issues/38[REPORT]
https://github.com/advisories/GHSA-vc42-mgr2-w34r[ADVISORY]