CVE-2021-30860
Confirmed PUBLISHEDAn integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS...
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
An integer overflow was addressed with improved input validation. This issue is fixed in Security Update 2021-005 Catalina, iOS 14.8 and iPadOS 14.8, macOS Big Sur 11.6, watchOS 7.6.2. Processing a maliciously crafted PDF may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited.
- CVE Published
- Aug 24, 2021
- Exploitation Reported
- Nov 03, 2021
- CVSS
- 7.8 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Apple |
macOS
|
unspecified to < 11.6 |
Affected |
| Apple |
macOS
|
unspecified to < 2021-005 |
Affected |
| Apple |
watchOS
|
unspecified to < 7.6 |
Affected |
| Apple |
iOS
|
unspecified to < 14.8 |
Affected |
CVE References
- GLSA-202209-21 security.gentoo.org · Vendor Advisory https://security.gentoo.org/glsa/202209-21
- 20210917 APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/28
- 20210917 APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/27
- 20210917 APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/25
- 20210917 APPLE-SA-2021-09-13-2 watchOS 7.6.2 seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/26
Show 10 more references
- 20210921 APPLE-SA-2021-09-20-8 Additional information for APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/40
- 20210921 APPLE-SA-2021-09-20-6 Additional information for APPLE-SA-2021-09-13-1 iOS 14.8 and iPadOS 14.8 seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/38
- 20210921 APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6 seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/39
- 20210924 APPLE-SA-2021-09-23-1 iOS 12.5.5 seclists.org · Mailing List http://seclists.org/fulldisclosure/2021/Sep/50
- [oss-security] 20220902 JBIG2 integer overflow fixed in Xpdf 4.04, Poppler 22.09.0 openwall.com · Mailing List http://www.openwall.com/lists/oss-security/2022/09/02/11
- support.apple.com/en-us/HT212804 support.apple.com · CVE Record https://support.apple.com/en-us/HT212804
- support.apple.com/en-us/HT212805 support.apple.com · CVE Record https://support.apple.com/en-us/HT212805
- support.apple.com/en-us/HT212807 support.apple.com · CVE Record https://support.apple.com/en-us/HT212807
- support.apple.com/en-us/HT212806 support.apple.com · CVE Record https://support.apple.com/en-us/HT212806
- support.apple.com/kb/HT212824 support.apple.com · CVE Record https://support.apple.com/kb/HT212824
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2021-11-03 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:P/I:P/A:P
Exploitation Status
Exploited in the wild
Recorded 2021-11-03 00:00:00 UTC · CISA
Proof of concept available
Recorded 2021-09-18 22:14:17 UTC · GitHub
Weaknesses (CWE)
-
Integer Overflow or Wraparound
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2021-12-25 03:00:01 UTC · 96 stars
Collection of materials relating to FORCEDENTRY
github · Created 2021-09-18 22:14:17 UTC · 11 stars
Scan for evidence of CVE-2021-30860 (FORCEDENTRY) exploit
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
22:14 UTC almost 5 years ago22:14 UTC · almost 5 years ago
Public PoC available
Public proof-of-concept code published
-
18:49 UTC almost 5 years ago18:49 UTC · almost 5 years ago
CVE published
Vulnerability disclosed publicly
-
00:00 UTC over 5 years ago00:00 UTC · over 5 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2021-30860
{
"cve_id": "CVE-2021-30860",
"title": "An integer overflow was addressed with improved input validation. This issue ...",
"affected_vendor": "Apple",
"affected_product": "macOS, watchOS, iOS",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}