Angular: Request Credential & Cache Policy Stripping in Angular Service Worker
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, 19.2.23
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
- Exploitation: none
- Automatable: yes
- Technical impact: partial
Summary
Angular is a development platform for building mobile and desktop web applications using TypeScript/JavaScript and other languages. Prior to 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23, an issue in the @angular/service-worker package compromises the integrity of request-policy enforcement during request reconstruction. When the Angular Service Worker intercepts network requests for matched assets, it reconstructs a new Request object using an internal helper function. During this reconstruction process, the helper function strips explicit client-defined safety parameters: the credentials configuration (such as credentials: 'omit') and the HTTP cache mode configuration (such as cache: 'no-store'). These are reverted back to standard browser-default parameters (credentials: 'same-origin' and default HTTP cache properties). This causes the browser to include active credentials (such as cookies or Authorization headers) on outbound requests where the client-side developer explicitly instructed they should be omitted, leading to potential session leaks. Additionally, it causes private or non-cacheable resources to be cached by the service worker's engine, making private page states accessible or persistent inside the client's local cache post-logout. This vulnerability is fixed in 22.0.0-rc.2, 21.2.15, 20.3.22, and 19.2.23.
Timeline
- CVE published
- CISA SSVC assessment
Exploitation: none · Automatable: yes · Technical impact: partial
- Record last updated
Affected versions
- angular angular
From 22.0.0-next.0 · fixed in 22.0.0-rc.2; From 21.0.0-next.0 · fixed in 21.2.15; From 20.0.0-next.0 · fixed in 20.3.22; From 19.0.0-next.0 · fixed in 19.2.23; through 18.2.14
- @angular/service-workernpm
From 22.0.0-next.0 · fixed in 22.0.0-rc.2
- @angular/service-workernpm
From 21.0.0-next.0 · fixed in 21.2.15
- @angular/service-workernpm
From 20.0.0-next.0 · fixed in 20.3.22
- @angular/service-workernpm
From 19.0.0-next.0 · fixed in 19.2.23
- @angular/service-workernpm
through 18.2.14