Apple Xcode up to 6.2 LLVM access control

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability classified as critical was found in Apple Xcode up to 6.2. Affected is an unknown function of the component LLVM. Executing a manipulation can lead to access control. This vulnerability appears as CVE-2015-3027. There is no available exploit. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Apple Xcode up to 6.2 (Programming Tool Software). It has been declared as critical. This vulnerability affects an unknown function of the component LLVM. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-264. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Clang in LLVM, as used in Apple Xcode before 6.3, performs incorrect register allocation in a way that triggers stack storage for stack cookie pointers, which might allow context-dependent attackers to bypass a stack-guard protection mechanism via crafted input to an affected C program.

The weakness was presented 04/10/2015 with Apple (Website). The advisory is shared for download at support.apple.com. This vulnerability was named CVE-2015-3027 since 04/08/2015. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1068.

The commercial vulnerability scanner Qualys is able to test this issue with plugin 370200 (Apple Xcode v6.3 Not Installed (APPLE-SA-2015-04-08-5)).

Upgrading to version 6.3 eliminates this vulnerability.

The vulnerability is also documented in the databases at X-Force (102247), SecurityFocus (BID 73987†), SecurityTracker (ID 1032081†) and Vulnerability Center (SBV-49898†). See VDB-74688 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.4

VulDB Base Score: 7.3
VulDB Temp Score: 6.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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VulDB Reliability: 🔍

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Exploitinginfo

Class: Access control
CWE: CWE-264
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Unproven

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Xcode 6.3

Timelineinfo

04/08/2015 🔍
04/08/2015 +0 days 🔍
04/10/2015 +2 days 🔍
04/10/2015 +0 days 🔍
04/10/2015 +0 days 🔍
04/11/2015 +1 days 🔍
04/11/2015 +0 days 🔍
04/27/2015 +16 days 🔍
06/27/2017 +792 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: support.apple.com
Organization: Apple
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2015-3027 (🔍)
GCVE (CVE): GCVE-0-2015-3027
GCVE (VulDB): GCVE-100-74788
X-Force: 102247 - Apple Xcode clang security bypass
SecurityFocus: 73987 - Apple Xcode 'clang' Local Security Bypass Vulnerability
SecurityTracker: 1032081 - Apple Xcode Clang Stack Cookie Error May Let Users Bypass Stack Guard Protection Mechanisms
Vulnerability Center: 49898 - Apple Xcode <6.3 Remote Security Bypass in LLVM Clang, Medium

See also: 🔍

Entryinfo

Created: 04/12/2015 01:53
Updated: 06/27/2017 03:56
Changes: 04/12/2015 01:53 (68), 06/27/2017 03:56 (4)
Complete: 🔍
Cache ID: 216:F3C:103

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