CVE-2019-10777Public exploit

Arbitrary command execution via unsanitized FunctionName

Published Jan 8, 2020 · Updated Aug 4, 2024

OS command injection in the aws-lambda npm package before 1.0.5 allows attackers to execute commands through a crafted FunctionName. The deploy method in lib/main.js inserts config.FunctionName into the zip command passed to child_process.exec without validation or shell escaping. Exploitation requires control of the deployment configuration, and injected commands run with the privileges of the process invoking deploy().

CVSS severity9.8
Critical
EPSS probability1.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in the aws-lambda npm package before 1.0.5 allows attackers to execute commands through a crafted FunctionName. The deploy method in lib/main.js inserts config.FunctionName into the zip command passed to child_process.exec without validation or shell escaping. Exploitation requires control of the deployment configuration, and injected commands run with the privileges of the process invoking deploy().

The record

CVE
CVE-2019-10777
Published
Jan 8, 2020
Updated
Aug 4, 2024
Vendor
Amazon Web Services
Product
AWS Lambda
Classifications
CWE-78, T1059
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 8, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=All versions prior to version 1.0.5

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Amazon Web Services · AWS Lambdaversion=All versions prior to version 1.0.5

Published CVSS scores

7.5NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
7.5SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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