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cvelistGoogleCVELIST:CVE-2020-8908
HistoryDec 10, 2020 - 10:10 p.m.

CVE-2020-8908 Temp directory permission issue in Guava

2020-12-1022:10:58
CWE-378
Google
www.cve.org
6
guava
cve-2020-8908
temp directory
permission issue
vulnerability
java
android

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

AI Score

5.6

Confidence

Low

EPSS

0.001

Percentile

25.5%

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 runtime’s java.io.tmpdir system property to point to a location whose permissions are appropriately configured.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Guava",
    "vendor": "Google LLC",
    "versions": [
      {
        "lessThan": "32.0",
        "status": "affected",
        "version": "1.0",
        "versionType": "custom"
      }
    ]
  }
]

References

CVSS3

3.3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

LOW

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

AI Score

5.6

Confidence

Low

EPSS

0.001

Percentile

25.5%