| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 4.6 | $5k-$25k | 0.00 |
Summary
A vulnerability marked as critical has been reported in Apple iOS up to 9.0. Affected by this issue is some unknown functionality of the component Security. The manipulation leads to 7pk security. This vulnerability is documented as CVE-2015-6999. There is not any exploit available. It is suggested to upgrade the affected component.
Details
A vulnerability, which was classified as critical, has been found in Apple iOS up to 9.0 (Smartphone Operating System). This issue affects an unknown code of the component Security. The manipulation with an unknown input leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, and integrity. The summary by CVE is:
The OCSP client in Apple iOS before 9.1 does not check for certificate expiry, which allows remote attackers to spoof a valid certificate by leveraging access to a revoked certificate.
The weakness was released 10/21/2015 by William Redwood (PanguTeam) with Apple as HT205370 as confirmed advisory (Website). The advisory is shared at support.apple.com. The identification of this vulnerability is CVE-2015-6999 since 09/16/2015. The exploitation is known to be difficult. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1211 for this issue. The advisory points out:
A validation issue existed in the OCSP client. This issue was addressed by checking the OCSP certificate's expiration time.
Upgrading to version 9.1 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.
The vulnerability is also documented in the databases at SecurityFocus (BID 77268†) and Vulnerability Center (SBV-53854†). Entries connected to this vulnerability are available at VDB-78724, VDB-78725, VDB-78727 and VDB-78728. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Product
Type
Vendor
Name
Version
License
Website
- Vendor: https://www.apple.com/
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔍VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 4.8VulDB Meta Temp Score: 4.6
VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
| AV | AC | Au | C | I | A |
|---|---|---|---|---|---|
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| 💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
|---|---|---|---|---|---|
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
| Unlock | Unlock | Unlock | Unlock | Unlock | Unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
NVD Base Score: 🔍
Exploiting
Class: 7pk securityCWE: CWE-254
CAPEC: 🔍
ATT&CK: 🔍
Physical: No
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
| 0-Day | Unlock | Unlock | Unlock | Unlock |
|---|---|---|---|---|
| Today | Unlock | Unlock | Unlock | Unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍
Upgrade: iOS 9.1
Timeline
09/16/2015 🔍10/21/2015 🔍
10/21/2015 🔍
10/21/2015 🔍
10/21/2015 🔍
10/22/2015 🔍
10/22/2015 🔍
10/23/2015 🔍
06/24/2022 🔍
Sources
Vendor: apple.comAdvisory: HT205370
Researcher: William Redwood (PanguTeam)
Organization: Apple
Status: Confirmed
Confirmation: 🔍
CVE: CVE-2015-6999 (🔍)
GCVE (CVE): GCVE-0-2015-6999
GCVE (VulDB): GCVE-100-78761
SecurityFocus: 77268 - Apple iOS APPLE-SA-2015-10-21-1 Multiple Security Vulnerabilities
SecurityTracker: 1033929
Vulnerability Center: 53854 - Apple iOS <9.1 Remote Security Bypass by Using Revoked Certificate, Medium
scip Labs: https://www.scip.ch/en/?labs.20150917
See also: 🔍
Entry
Created: 10/22/2015 11:17Updated: 06/24/2022 08:39
Changes: 10/22/2015 11:17 (64), 02/17/2018 09:24 (7), 06/24/2022 08:39 (3)
Complete: 🔍
Cache ID: 216::103
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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