GHSA-h9mw-grgx-2fhfLowCVSS 3.9

sbt vulnerable to arbitrary file write via archive extraction (Zip Slip)

Published
October 24, 2023
Last Modified
November 10, 2023

🔗 CVE IDs covered (1)

📋 Description

Impact

Given specially crafted zip or JAR file, IO.unzip allows writing of arbitrary file. The follow is an example of a malicious entry:

+2018-04-15 22:04:42 ..... 20 20 ../../../../../../root/.ssh/authorized_keys

This would have a potential to overwrite /root/.ssh/authorized_keys. Within sbt's main code, IO.unzip is used in pullRemoteCache task and Resolvers.remote; however many projects use IO.unzip(...) directly to implement custom tasks - https://github.com/search?q=IO.unzip+language%3AScala&type=code&l=Scala&p=1

Patches

The problem has been patched in https://github.com/sbt/io/pull/360 sbt 1.9.7 is available with the fix.

Workarounds

A workaround might be use some other library to unzip.

References

  • https://github.com/snyk/zip-slip-vulnerability
  • https://security.snyk.io/vuln/SNYK-JAVA-ORGCODEHAUSPLEXUS-31680
  • https://github.com/sbt/io/issues/358

🎯 Affected products4

  • maven/org.scala-sbt:sbt:>= 0.3.4, < 1.9.7
  • maven/org.scala-sbt:io_2.12:>= 1.0.0, < 1.9.7
  • maven/org.scala-sbt:io_2.13:>= 1.0.0, < 1.9.7
  • maven/org.scala-sbt:io_3:>= 1.0.0, < 1.9.7

🔗 References (6)