CVE-2020-13431 — I2P before 0

I2P before 0.9.46 allows local users to gain privileges via a Trojan horse I2PSvc.exe file because of weak permissions on a certain %PROGRAMFILES% subdirectory.

01What is this vulnerability?

I2P before 0.9.46 allows local users to gain privileges via a Trojan horse I2PSvc.exe file because of weak permissions on a certain %PROGRAMFILES% subdirectory.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2020-06-16T12:26:26.000Z
• Last modified: 2024-08-04T12:18:18.293Z

09References

• geti2p.net — https://geti2p.net/en
• blog.blazeinfosec.com — https://blog.blazeinfosec.com/security-advisory-i2p-for-windows-local-privilege-…