CVE-2020-8908

A temp directory creation vulnerability exists in all versions of Guava, allowing an attacker with access to the machine to potentially access data in a temporary directory created by the Guava API com.google.common.io.Files.createTempDir(). By default, on unix-like systems, the created directory is world-readable (readable by an attacker with access to the system). The method in question has been marked @Deprecated in versions 30.0 and later and should not be used. For Android developers, we recommend choosing a temporary directory API provided by Android, such as context.getCacheDir(). For other Java developers, we recommend migrating to the Java 7 API java.nio.file.Files.createTempDirectory() which explicitly configures permissions of 700, or configuring the Java runtimes java.io.tmpdir system property to point to a location whose permissions are appropriately configured.

Weakness

The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors.

Affected Software

Potential Mitigations

• Run the code in a “jail” or similar sandbox environment that enforces strict boundaries between the process and the operating system. This may effectively restrict which files can be accessed in a particular directory or which commands can be executed by the software.
• OS-level examples include the Unix chroot jail, AppArmor, and SELinux. In general, managed code may provide some protection. For example, java.io.FilePermission in the Java SecurityManager allows the software to specify restrictions on file operations.
• This may not be a feasible solution, and it only limits the impact to the operating system; the rest of the application may still be subject to compromise.
• Be careful to avoid CWE-243 and other weaknesses related to jails.

Related Attack Patterns

• https://cwe.mitre.org/data/definitions/1.html
• https://cwe.mitre.org/data/definitions/122.html
• https://cwe.mitre.org/data/definitions/127.html
• https://cwe.mitre.org/data/definitions/17.html
• https://cwe.mitre.org/data/definitions/180.html
• https://cwe.mitre.org/data/definitions/206.html
• https://cwe.mitre.org/data/definitions/234.html
• https://cwe.mitre.org/data/definitions/60.html
• https://cwe.mitre.org/data/definitions/61.html
• https://cwe.mitre.org/data/definitions/62.html
• https://cwe.mitre.org/data/definitions/642.html

References

• https://github.com/google/guava/commit/fec0dbc4634006a6162cfd4d0d09c962073ddf40
• https://github.com/google/guava/issues/4011
• https://lists.apache.org/thread.html/r007add131977f4f576c232b25e024249a3d16f66aad14a4b52819d21%40%3Ccommon-issues.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/r07ed3e4417ad043a27bee7bb33322e9bfc7d7e6d1719b8e3dfd95c14%40%3Cdev.drill.apache.org%3E
• https://lists.apache.org/thread.html/r161b87f8037bbaff400194a63cd2016c9a69f5949f06dcc79beeab54%40%3Cdev.drill.apache.org%3E
• https://lists.apache.org/thread.html/r215b3d50f56faeb2f9383505f3e62faa9f549bb23e8a9848b78a968e%40%3Ccommits.ws.apache.org%3E
• https://lists.apache.org/thread.html/r294be9d31c0312d2c0837087204b5d4bf49d0552890e6eec716fa6a6%40%3Cyarn-issues.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/r2fe45d96eea8434b91592ca08109118f6308d60f6d0e21d52438cfb4%40%3Cdev.drill.apache.org%3E
• https://lists.apache.org/thread.html/r3c3b33ee5bef0c67391d27a97cbfd89d44f328cf072b601b58d4e748%40%3Ccommits.pulsar.apache.org%3E
• https://lists.apache.org/thread.html/r3dd8881de891598d622227e9840dd7c2ef1d08abbb49e9690c7ae1bc%40%3Cissues.geode.apache.org%3E
• https://lists.apache.org/thread.html/r4776f62dfae4a0006658542f43034a7fc199350e35a66d4e18164ee6%40%3Ccommits.cxf.apache.org%3E
• https://lists.apache.org/thread.html/r49549a8322f62cd3acfa4490d25bfba0be04f3f9ff4d14fe36199d27%40%3Cyarn-dev.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/r58a8775205ab1839dba43054b09a9ab3b25b423a4170b2413c4067ac%40%3Ccommon-issues.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/r5b3d93dfdfb7708e796e8762ab40edbde8ff8add48aba53e5ea26f44%40%3Cissues.geode.apache.org%3E
• https://lists.apache.org/thread.html/r5d61b98ceb7bba939a651de5900dbd67be3817db6bfcc41c6e04e199%40%3Cyarn-issues.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/r6874dfe26eefc41b7c9a5e4a0487846fc4accf8c78ff948b24a1104a%40%3Cdev.drill.apache.org%3E
• https://lists.apache.org/thread.html/r68d86f4b06c808204f62bcb254fcb5b0432528ee8d37a07ef4bc8222%40%3Ccommits.ws.apache.org%3E
• https://lists.apache.org/thread.html/r79e47ed555bdb1180e528420a7a2bb898541367a29a3bc6bbf0baf2c%40%3Cissues.hive.apache.org%3E
• https://lists.apache.org/thread.html/r7b0e81d8367264d6cad98766a469d64d11248eb654417809bfdacf09%40%3Cyarn-issues.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/r841c5e14e1b55281523ebcde661ece00b38a0569e00ef5e12bd5f6ba%40%3Cissues.maven.apache.org%3E
• https://lists.apache.org/thread.html/ra7ab308481ee729f998691e8e3e02e93b1dedfc98f6b1cd3d86923b3%40%3Cyarn-issues.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/rb2364f4cf4d274eab5a7ecfaf64bf575cedf8b0173551997c749d322%40%3Cgitbox.hive.apache.org%3E
• https://lists.apache.org/thread.html/rb8c0f1b7589864396690fe42a91a71dea9412e86eec66dc85bbacaaf%40%3Ccommits.cxf.apache.org%3E
• https://lists.apache.org/thread.html/rbc7642b9800249553f13457e46b813bea1aec99d2bc9106510e00ff3%40%3Ctorque-dev.db.apache.org%3E
• https://lists.apache.org/thread.html/rc2dbc4633a6eea1fcbce6831876cfa17b73759a98c65326d1896cb1a%40%3Ctorque-dev.db.apache.org%3E
• https://lists.apache.org/thread.html/rc607bc52f3507b8b9c28c6a747c3122f51ac24afe80af2a670785b97%40%3Cissues.geode.apache.org%3E
• https://lists.apache.org/thread.html/rcafc3a637d82bdc9a24036b2ddcad1e519dd0e6f848fcc3d606fd78f%40%3Cdev.hive.apache.org%3E
• https://lists.apache.org/thread.html/rd01f5ff0164c468ec7abc96ff7646cea3cce6378da2e4aa29c6bcb95%40%3Cgithub.arrow.apache.org%3E
• https://lists.apache.org/thread.html/rd2704306ec729ccac726e50339b8a8f079515cc29ccb77713b16e7c5%40%3Cissues.hive.apache.org%3E
• https://lists.apache.org/thread.html/rd5d58088812cf8e677d99b07f73c654014c524c94e7fedbdee047604%40%3Ctorque-dev.db.apache.org%3E
• https://lists.apache.org/thread.html/rd7e12d56d49d73e2b8549694974b07561b79b05455f7f781954231bf%40%3Cdev.pig.apache.org%3E
• https://lists.apache.org/thread.html/re120f6b3d2f8222121080342c5801fdafca2f5188ceeb3b49c8a1d27%40%3Cyarn-issues.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/reebbd63c25bc1a946caa419cec2be78079f8449d1af48e52d47c9e85%40%3Cissues.geode.apache.org%3E
• https://lists.apache.org/thread.html/rf00b688ffa620c990597f829ff85fdbba8bf73ee7bfb34783e1f0d4e%40%3Cyarn-dev.hadoop.apache.org%3E
• https://lists.apache.org/thread.html/rf9f0fa84b8ae1a285f0210bafec6de2a9eba083007d04640b82aa625%40%3Cissues.geode.apache.org%3E
• https://lists.apache.org/thread.html/rfc27e2727a20a574f39273e0432aa97486a332f9b3068f6ac1346594%40%3Cdev.myfaces.apache.org%3E
• https://security.netapp.com/advisory/ntap-20220210-0003/
• https://snyk.io/vuln/SNYK-JAVA-COMGOOGLEGUAVA-1015415
• https://www.oracle.com//security-alerts/cpujul2021.html
• https://www.oracle.com/security-alerts/cpuApr2021.html
• https://www.oracle.com/security-alerts/cpuapr2022.html
• https://www.oracle.com/security-alerts/cpujan2022.html
• https://www.oracle.com/security-alerts/cpuoct2021.html