Apple iCal 3.0.1 input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.0$0-$5k0.00

A vulnerability, which was classified as critical, was found in Apple iCal 3.0.1. Affected is some unknown functionality. The manipulation with an unknown input leads to a input validation vulnerability. CWE is classifying the issue as CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. This is going to have an impact on availability. CVE summarizes:

Apple iCal 3.0.1 on Mac OS X allows remote CalDAV servers, and user-assisted remote attackers, to cause a denial of service (NULL pointer dereference and application crash) or possibly execute arbitrary code via a .ics file containing (1) a large 16-bit integer on a TRIGGER line, or (2) a large integer in a COUNT field on an RRULE line.

The bug was discovered 05/21/2008. The weakness was disclosed 05/22/2008 by CORE Security with Core Security Consulting Services (Website). The advisory is shared for download at xforce.iss.net. This vulnerability is traded as CVE-2008-2006 since 04/28/2008. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Technical details are unknown but a public exploit is available.

The exploit is shared for download at securityfocus.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $25k-$100k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product. Furthermore it is possible to detect and prevent this kind of attack with TippingPoint and the filter 6179.

The vulnerability is also documented in the vulnerability database at X-Force (42569). The entries VDB-21195, VDB-24006, VDB-28929 and VDB-42635 are pretty similar.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.0

VulDB Base Score: 5.3
VulDB Temp Score: 5.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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VulDB Base Score: 🔍
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Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Local: No
Remote: Yes

Availability: 🔍
Access: Public
Status: Proof-of-Concept
Download: 🔍

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍
TippingPoint: 🔍
PaloAlto IPS: 🔍
Fortigate IPS: 🔍

Timelineinfo

04/21/2008 🔍
04/28/2008 +7 days 🔍
05/21/2008 +23 days 🔍
05/21/2008 +0 days 🔍
05/22/2008 +1 days 🔍
05/22/2008 +0 days 🔍
05/22/2008 +0 days 🔍
06/02/2008 +11 days 🔍
03/16/2015 +2478 days 🔍
08/11/2019 +1609 days 🔍

Sourcesinfo

Vendor: apple.com

Advisory: xforce.iss.net
Researcher: CORE Security
Organization: Core Security Consulting Services
Status: Confirmed

CVE: CVE-2008-2006 (🔍)
X-Force: 42569
SecurityTracker: 1020094
Vulnerability Center: 18500 - Apple iCal 3.0.1 Remote User-Assisted DoS and Code Execution Related to TRIGGER and RRULE Lines, Medium
SecurityFocus: 28632 - Apple iCal 'TRIGGER' Parameter Denial of Service Vulnerability
OSVDB: 45691 - Apple iCal TRIGGER denial of service
Vupen: ADV-2008-1601

scip Labs: https://www.scip.ch/en/?labs.20161013
See also: 🔍

Entryinfo

Created: 03/16/2015 17:00
Updated: 08/11/2019 06:41
Changes: 03/16/2015 17:00 (64), 08/11/2019 06:41 (9)
Complete: 🔍
Cache ID: 3:B30:103

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