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CVE

GHSA-8x4m-qw58-3pcx

mppx has multiple payment bypass and griefing vulnerabilities
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CVE

GHSA-8x4m-qw58-3pcx

mppx has multiple payment bypass and griefing vulnerabilities

Impact

Multiple vulnerabilities were discovered in tempo/charge and tempo/session which allowed for undesirable behaviors, including:

  • Replaying tempo/charge transaction hashes across push/pull modes, across charge/session endpoints, and via concurrent requests
  • Performing free tempo/charge requests due to missing transfer log verification in pull-mode
  • Replaying tempo/charge credentials across routes via cross-route scope confusion (memo/splits not included in scope binding)
  • Manipulating the fee payer of a tempo/charge handler into paying for requests (missing sender signature before co-signing)
  • Bypassing tempo/session voucher signature verification
  • Piggybacking off existing tempo/session channels via settle voucher reuse and weak channel ID binding
  • Performing free tempo/session requests by exploiting channel reopen without on-chain settled state
  • Accepting deductions on finalized tempo/session channels
  • Bypassing payment on free routes via method-mismatch fallback
  • Griefing tempo/session channels via force-close detection bypass (closeRequestedAt not persisted)

Patches

Fixed in 0.4.8.

Workarounds

There are no workarounds available for these vulnerabilities.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
-
C
H
U
0
-
C
H
U
-

Related Resources

No items found.

References

https://github.com/wevm/mppx/security/advisories/GHSA-8x4m-qw58-3pcx, https://github.com/wevm/mppx

Severity

0

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
0
EPSS Probability
0%
EPSS Percentile
0%
Introduced Version
0
Fix Available
0.4.8

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