Skype 1.5.0.79 on Mac URI Argument input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Skype 1.5.0.79 on Mac. Affected by this vulnerability is an unknown functionality of the component URI Argument Handler. The manipulation leads to input validation. This vulnerability is referenced as CVE-2006-5084. Furthermore, an exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Skype 1.5.0.79 on Mac (Unified Communication Software). This issue affects some unknown functionality of the component URI Argument Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to 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. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Format string vulnerability in the NSRunAlertPanel function in eBay Skype for Mac 1.5.*.79 and earlier allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a malformed Skype URL, as originally reported to involve a null dereference.

The bug was discovered 09/23/2006. The weakness was published 10/03/2006 by Tom Ferris (Website). The advisory is shared at skype.com. The identification of this vulnerability is CVE-2006-5084 since 09/28/2006. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are unknown but an exploit is available.

The exploit is available at security-protocols.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 5 days. During that time the estimated underground price was around $25k-$100k. The commercial vulnerability scanner Qualys is able to test this issue with plugin 38565 (Skype URI Argument Handling Format String Vulnerability).

Upgrading eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at skype.com. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at X-Force (29320), Exploit-DB (28710), SecurityFocus (BID 20218†), OSVDB (29488†) and Secunia (SA22185†). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.3
VulDB Meta Temp Score: 6.6

VulDB Base Score: 7.3
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

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

Physical: No
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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Qualys ID: 🔍
Qualys Name: 🔍

Exploit-DB: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Patch: skype.com

Timelineinfo

09/23/2006 🔍
09/26/2006 +3 days 🔍
09/26/2006 +0 days 🔍
09/28/2006 +2 days 🔍
09/28/2006 +0 days 🔍
10/02/2006 +4 days 🔍
10/03/2006 +1 days 🔍
10/03/2006 +0 days 🔍
10/03/2006 +0 days 🔍
10/04/2006 +0 days 🔍
10/22/2006 +18 days 🔍
06/16/2025 +6811 days 🔍

Sourcesinfo

Advisory: skype.com
Researcher: Tom Ferris
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2006-5084 (🔍)
GCVE (CVE): GCVE-0-2006-5084
GCVE (VulDB): GCVE-100-2585
CERT: 🔍
X-Force: 29320
SecurityFocus: 20218 - Skype Technologies Skype NSRunAlertPanel Remote Format String Vulnerability
Secunia: 22185 - Skype URI Argument Handling Format String Vulnerability, Highly Critical
OSVDB: 29488 - Skype URI Handling NSRunAlertPanel Function Format String
SecurityTracker: 1016966
Vulnerability Center: 12962 - eBay Skype for Mac 1.5.*.79 Remote DoS and Code Execution Via a Malformed Skype URL, Medium
Vupen: ADV-2006-3895

scip Labs: https://www.scip.ch/en/?labs.20140918

Entryinfo

Created: 10/04/2006 13:07
Updated: 06/16/2025 01:47
Changes: 10/04/2006 13:07 (84), 07/10/2019 09:11 (1), 11/03/2024 05:30 (19), 06/03/2025 23:53 (1), 06/16/2025 01:47 (2)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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