CVE-2021-21172
published 2021-03-09CVE-2021-21172: Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem…
PriorityP343high8.1CVSS 3.1
AVNACLPRNUIRSUCHIHAN
EPSS
1.65%
74.1th percentile
Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
Affected
13 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| chromium | chromium | >= 0 < 89.0.4389.82-1 | 89.0.4389.82-1 |
| debian | chromium | < chromium 89.0.4389.82-1 (bookworm) | chromium 89.0.4389.82-1 (bookworm) |
| debian | debian_linux | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| chrome | < 89.0.4389.72 | 89.0.4389.72 | |
| chrome | >= unspecified < 89.0.4389.72 | 89.0.4389.72 | |
| chrome_chrome | — | — | |
| msrc | microsoft_edge | — | — |
CVSS provenance
nvdv3.18.1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
nvdv2.05.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:N
osv8.1HIGH
vendor_debian8.1HIGH
vendor_msrc8.1HIGH
Stop checking back — get the weekly exploitation signal.
Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.
GHSA
GHSA-mc2v-pp94-p8j7: Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89
ghsa_unreviewed·2022-05-24
CVE-2021-21172 [HIGH] GHSA-mc2v-pp94-p8j7: Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89
Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
OSV
CVE-2021-21172: Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89
osv·2021-03-09·CVSS 8.1
CVE-2021-21172 [HIGH] CVE-2021-21172: Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89
Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
Microsoft
Chromium CVE-2021-21172: Insufficient policy enforcement in File System API
vendor_msrc·2021-03-09·CVSS 8.1
CVE-2021-21172 [HIGH] Chromium CVE-2021-21172: Insufficient policy enforcement in File System API
Chromium CVE-2021-21172: Insufficient policy enforcement in File System API
Description: This CVE was assigned by Chrome. Microsoft Edge (Chromium-based) ingests Chromium, which addresses this vulnerability. Please see Google Chrome Releases for more information.
FAQ: Why is this Chrome CVE included in the Security Update Guide?
The vulnerability assigned to this CVE is in Chromium Open Source Software (OSS) which is consumed by Microsoft Edge (Chromium-based). It is being documented in the Security Update Guide to announce that the latest version of Microsoft Edge (Chromium-based) is no longer vulnerable. Please see Security Update Guide Supports CVEs Assigned by Industry Partners for more information.
How can I see the version of the browser?
In your Microsoft Edge browser, click on t
Chrome
Stable Channel Update for Desktop: CVE-2021-21171
vendor_chrome·2021-03-02·CVSS 6.5
CVE-2021-21171 [MEDIUM] Stable Channel Update for Desktop: CVE-2021-21171
Stable Channel Update for Desktop
CVE-2021-21171: Incorrect security UI in TabStrip and Navigation. Reported by Irvan Kurniawan (sourc7) on 2020-11-25 [$1000][ 1150810 ] Medium CVE-2021-21172: Insufficient policy enforcement in File System API
Reported by Maciej Pulikowski on 2020-11-19 [$500][ 1154250 ] Medium CVE-2021-21173: Side-channel information leakage in Network Internals
Severity: medium
Debian
CVE-2021-21172: chromium - Insufficient policy enforcement in File System API in Google Chrome on Windows p...
vendor_debian·2021·CVSS 8.1
CVE-2021-21172 [HIGH] CVE-2021-21172: chromium - Insufficient policy enforcement in File System API in Google Chrome on Windows p...
Insufficient policy enforcement in File System API in Google Chrome on Windows prior to 89.0.4389.72 allowed a remote attacker to bypass filesystem restrictions via a crafted HTML page.
Scope: local
bookworm: resolved (fixed in 89.0.4389.82-1)
bullseye: resolved (fixed in 89.0.4389.82-1)
forky: resolved (fixed in 89.0.4389.82-1)
sid: resolved (fixed in 89.0.4389.82-1)
trixie: resolved (fixed in 89.0.4389.82-1)
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.htmlhttps://crbug.com/1150810https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT/https://security.gentoo.org/glsa/202104-08https://www.debian.org/security/2021/dsa-4886https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop.htmlhttps://crbug.com/1150810https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BBT54RKAE5XLMWSHLVUKJ7T2XHHYMXLH/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FE5SIKEVYTMDCC5OSXGOM2KRPYLHYMQX/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LCIDZ77XUDMB2EBPPWCQXPEIJERDNSNT/https://security.gentoo.org/glsa/202104-08https://www.debian.org/security/2021/dsa-4886
2021-03-09
Published