CVE-2018-19981

Name: CVE-2018-19981
Creator: NVD / NIST
Published: 2019-04-04T15:29:01.11+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.83%

Last modified Jun 17, 2026

CVE-2018-19981 is a vulnerability of currently unknown severity. Amazon AWS SDK <=2.8.5 for Android uses Android SharedPreferences to store plain text AWS STS Temporary Credentials retrieved by AWS Cognito Identity Service. An attacker can use these credentials to create authenticated and/or authorized requests. EPSS estimates a 1.83% chance of exploitation in the next 30 days.

Description

Amazon AWS SDK <=2.8.5 for Android uses Android SharedPreferences to store plain text AWS STS Temporary Credentials retrieved by AWS Cognito Identity Service. An attacker can use these credentials to create authenticated and/or authorized requests. Note that the attacker must have "root" privilege access to the Android filesystem in order to exploit this vulnerability (i.e. the device has been compromised, such as disabling or bypassing Android's fundamental security mechanisms).

Metrics

EPSS Probability

1.83%

76.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-312

Affected Software

Vendor	Product	Versions
Amazon	Aws Software Development Kit	<= 2.8.5

References

https://aws-amplify.github.io/aws-sdk-android/docs/reference/com/amazonaws/auth/CognitoCachingCredentialsProvider.htmlExploit, Third Party Advisory
https://raw.githubusercontent.com/lorenzodifuccia/cloudflare/master/Images/vulns/aws/aws_sdk_sp_01.pngExploit, Third Party Advisory
https://raw.githubusercontent.com/lorenzodifuccia/cloudflare/master/Images/vulns/aws/aws_sdk_sp_02.pngExploit, Third Party Advisory
https://raw.githubusercontent.com/lorenzodifuccia/cloudflare/master/Images/vulns/aws/aws_sdk_sp_03.pngExploit, Third Party Advisory
https://aws-amplify.github.io/aws-sdk-android/docs/reference/com/amazonaws/auth/CognitoCachingCredentialsProvider.htmlExploit, Third Party Advisory
https://raw.githubusercontent.com/lorenzodifuccia/cloudflare/master/Images/vulns/aws/aws_sdk_sp_01.pngExploit, Third Party Advisory
https://raw.githubusercontent.com/lorenzodifuccia/cloudflare/master/Images/vulns/aws/aws_sdk_sp_02.pngExploit, Third Party Advisory
https://raw.githubusercontent.com/lorenzodifuccia/cloudflare/master/Images/vulns/aws/aws_sdk_sp_03.pngExploit, Third Party Advisory

Timeline

Published: Apr 4, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-19981?

How severe is CVE-2018-19981?

Severity scoring for CVE-2018-19981 is pending analysis. The EPSS model estimates a 1.83% probability of exploitation in the next 30 days.

How do I fix CVE-2018-19981?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-19981?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST