What is CVE-2019-10777?

CVE-2019-10777 is a critical-severity vulnerability in Amazon AWS Lambda, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-01-08.

How severe is CVE-2019-10777?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2019-10777 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

RCE in Amazon AWS Lambda

CVE-2019-10777

In aws-lambda versions prior to version 1.0.5, the "config.FunctioName" is used to construct the argument used within the "exec" function without any sanitization. It is possible for a user to inject arbitrary commands to the "zipCmd" used within "config.FunctionName".

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.016 (74.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Amazon Aws_lambda
N/a Aws-lambda — versions All versions prior to version 1.0.5

Weakness classification (CWE)

CWE-78 — OS Command Injection

Public proof-of-concept exploits

References

report@snyk.io (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2019-10777?: CVE-2019-10777 is a critical-severity vulnerability in Amazon AWS Lambda, classified under OS Command Injection. CVSS score: 9.8/10. Published 2020-01-08.
How severe is CVE-2019-10777?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2019-10777 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.