angular-expressions is "angular's nicest part extracted as a standalone module for the browser and node". In angular-expressions before version 1.1.2 there is a vulnerability which allows Remote Code Execution if you call "expressions.compile(userControlledInput)" where "userControlledInput" is text that comes from user input. The security of the package could be bypassed by using a more complex payload, using a ".constructor.constructor" technique. In terms of impact: If running angular-expressions in the browser, an attacker could run any browser script when the application code calls expressions.compile(userControlledInput). If running angular-expressions on the server, an attacker could run any Javascript expression, thus gaining Remote Code Execution. This is fixed in version 1.1.2 of angular-expressions A temporary workaround might be either to disable user-controlled input that will be fed into angular-expressions in your application or allow only following characters in the userControlledInput.
History

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2021-02-01T15:05:24

Updated: 2024-08-03T18:09:15.102Z

Reserved: 2020-12-22T00:00:00

Link: CVE-2021-21277

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2021-02-01T15:15:13.340

Modified: 2022-10-19T19:06:19.997

Link: CVE-2021-21277

cve-icon Redhat

No data.