cbcvebase.
CVE-2017-13791
published 2017-11-13

CVE-2017-13791: An issue was discovered in certain Apple products. iOS before 11.1 is affected. Safari before 11.0.1 is affected. iCloud before 7.1 on Windows is affected…

PriorityP260high8.8CVSS 3.0
AVNACLPRNUIRSUCHIHAH
EXPLOIT
EPSS
5.82%
92.4th percentile
An issue was discovered in certain Apple products. iOS before 11.1 is affected. Safari before 11.0.1 is affected. iCloud before 7.1 on Windows is affected. iTunes before 12.7.1 on Windows is affected. tvOS before 11.1 is affected. The issue involves the "WebKit" component. It allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption and application crash) via a crafted web site.

Affected

11 ranges
VendorProductVersion rangeFixed in
appleicloud< 7.17.1
appleicloud_for_windows
appleios
appleiphone_os< 11.111.1
appleitunes< 12.7.112.7.1
appleitunes_12.7.1_for_windows
applesafari< 11.0.111.0.1
applesafari
appletvos< 11.111.1
appletvos
debianwebkit2gtk< webkit2gtk 2.18.1-1 (bookworm)webkit2gtk 2.18.1-1 (bookworm)

Detection & IOCsextracted from sources · hover to see the quote

commandWebCore::FormSubmission::create Use-After-Free via textarea setRangeText/autofocus/form.submit()
  • The vulnerability is triggered via a crafted web page that calls setRangeText on a textarea, sets autofocus on a second textarea, inserts it before the form's first child, and then calls form.submit() — look for this DOM manipulation pattern in JavaScript delivered via web content.
  • The crash originates in WebCore::FormSubmission::create (use-after-free), triggered through the WebKit event/load dispatch chain — monitor WebContent process crashes involving FormSubmission or FormAssociatedElement vector reallocation.
  • ·Exploit requires delivery via a crafted web site (remote vector); no network-based IOC (domain/IP/URL) is present in the available sources — detection must rely on behavioral/content patterns.
  • ·Affected products span multiple Apple platforms (iOS <11.1, Safari <11.0.1, iCloud for Windows <7.1, iTunes for Windows <12.7.1, tvOS <11.1); detection scope should cover all WebKit-based renderers on these platforms.

CVSS provenance

nvdv3.08.8HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
nvdv2.06.8MEDIUMAV:N/AC:M/Au:N/C:P/I:P/A:P
osv8.8HIGH
vendor_debian8.8LOW
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