CVE-2020-9850
published 2020-06-09CVE-2020-9850: A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes…
PriorityP180critical9.8CVSS 3.1
AVNACLPRNUINSUCHIHAH
EXPLOIT
EPSS
77.25%
99.5th percentile
A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.
Affected
17 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| apple | icloud | < 7.19 | 7.19 |
| apple | icloud | >= 11.0 < 11.2 | 11.2 |
| apple | icloud_for_windows | >= unspecified < iCloud for Windows 11.2 | iCloud for Windows 11.2 |
| apple | icloud_for_windows | >= unspecified < iCloud for Windows 7.19 | iCloud for Windows 7.19 |
| apple | ios | >= unspecified < iOS 13.5 and iPadOS 13.5 | iOS 13.5 and iPadOS 13.5 |
| apple | ipados | < 13.5 | 13.5 |
| apple | iphone_os | < 13.5 | 13.5 |
| apple | itunes | < 12.10.7 | 12.10.7 |
| apple | itunes_for_windows | >= unspecified < iTunes 12.10.7 for Windows | iTunes 12.10.7 for Windows |
| apple | safari | < 13.1.1 | 13.1.1 |
| apple | safari | >= unspecified < Safari 13.1.1 | Safari 13.1.1 |
| apple | tvos | < 13.4.5 | 13.4.5 |
| apple | tvos | >= unspecified < tvOS 13.4.5 | tvOS 13.4.5 |
| apple | watchos | < 6.2.5 | 6.2.5 |
| apple | watchos | >= unspecified < watchOS 6.2.5 | watchOS 6.2.5 |
| debian | webkit2gtk | < webkit2gtk 2.28.3-1 (bookworm) | webkit2gtk 2.28.3-1 (bookworm) |
| debian | wpewebkit | < webkit2gtk 2.28.3-1 (bookworm) | webkit2gtk 2.28.3-1 (bookworm) |
Detection & IOCsextracted from sources · hover to see the quote
- →Monitor for type confusion exploitation in Safari's DFG JIT compiler triggered via the 'in' operator with a PDF plugin element callback, which can be used to construct addrof and fakeobj primitives leading to arbitrary read/write of memory. ↗
- →Detect shellcode written into JIT RWX memory regions (RWX memory pages) as part of the exploit chain following type confusion exploitation. ↗
- →Alert on unexpected file extraction or application creation under /var/db/CVMS on macOS, which is used by the exploit chain to stage and execute a payload outside the sandbox. ↗
- →Monitor for exploitation of CVM Server heap overflow (CVE-2020-9856) as a chained second-stage following the initial Safari type confusion, indicating a full exploit chain in progress. ↗
- ·The exploit chain requires three chained CVEs (CVE-2020-9850, CVE-2020-9856, CVE-2020-9801); detection of any single stage may not indicate full compromise without the others. ↗
- ·WebKitGTK-based deployments on Red Hat Enterprise Linux are rated 'Moderate' severity because no WebKitGTK-based browser is shipped by default, reducing the attack surface compared to Safari on macOS/iOS. ↗
CVSS provenance
nvdv3.19.8CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
nvdv2.07.5HIGHAV:N/AC:L/Au:N/C:P/I:P/A:P
osv9.8CRITICAL
vendor_debian9.8CRITICAL
vendor_redhat9.8CRITICAL
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Ubuntu
WebKitGTK+ vulnerabilities
vendor_ubuntu·2020-07-14
CVE-2020-13753 WebKitGTK+ vulnerabilities
Title: WebKitGTK+ vulnerabilities
Summary: Several security issues were fixed in WebKitGTK.
A large number of security issues were discovered in the WebKitGTK Web and
JavaScript engines. If a user were tricked into viewing a malicious
website, a remote attacker could exploit a variety of issues related to web
browser security, including cross-site scripting attacks, denial of service
attacks, and arbitrary code execution.
Instructions: This update uses a new upstream release, which includes additional bug
fixes. After a standard system update you need to restart any applications
that use WebKitGTK, such as Epiphany, to make all the necessary changes.
Red Hat
webkitgtk: Logic issue may lead to arbitrary code execution
vendor_redhat·2020-07-10·CVSS 9.8
CVE-2020-9850 [CRITICAL] CWE-841 webkitgtk: Logic issue may lead to arbitrary code execution
webkitgtk: Logic issue may lead to arbitrary code execution
A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.
A logic issue was found in webkitgtk that affected WebKitGTK versions before 2.28.3 and WPE WebKit versions before 2.28.3. This flaw allows a remote attacker to cause arbitrary code execution. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.
Statement: This flaw is being rated as 'Moderate' as WebKitGTK package is shipped as a dependency for Gnome package, additionally Red Hat Enterp
Debian
CVE-2020-9850: webkit2gtk - A logic issue was addressed with improved restrictions. This issue is fixed in i...
vendor_debian·2020·CVSS 9.8
CVE-2020-9850 [CRITICAL] CVE-2020-9850: webkit2gtk - A logic issue was addressed with improved restrictions. This issue is fixed in i...
A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.
Scope: local
bookworm: resolved (fixed in 2.28.3-1)
bullseye: resolved (fixed in 2.28.3-1)
forky: resolved (fixed in 2.28.3-1)
sid: resolved (fixed in 2.28.3-1)
trixie: resolved (fixed in 2.28.3-1)
GHSA
GHSA-4jv4-fxjp-hmm7: A logic issue was addressed with improved restrictions
ghsa_unreviewed·2022-05-24
CVE-2020-9850 [HIGH] GHSA-4jv4-fxjp-hmm7: A logic issue was addressed with improved restrictions
A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.
OSV
CVE-2020-9850: A logic issue was addressed with improved restrictions
osv·2020-06-09·CVSS 9.8
CVE-2020-9850 [CRITICAL] CVE-2020-9850: A logic issue was addressed with improved restrictions
A logic issue was addressed with improved restrictions. This issue is fixed in iOS 13.5 and iPadOS 13.5, tvOS 13.4.5, watchOS 6.2.5, Safari 13.1.1, iTunes 12.10.7 for Windows, iCloud for Windows 11.2, iCloud for Windows 7.19. A remote attacker may be able to cause arbitrary code execution.
No detection rules found.
https://support.apple.com/HT211168https://support.apple.com/HT211171https://support.apple.com/HT211175https://support.apple.com/HT211177https://support.apple.com/HT211178https://support.apple.com/HT211179https://support.apple.com/HT211181https://support.apple.com/HT211168https://support.apple.com/HT211171https://support.apple.com/HT211175https://support.apple.com/HT211177https://support.apple.com/HT211178https://support.apple.com/HT211179https://support.apple.com/HT211181
2020-06-09
Published