Microsoft Skype up to 8.59.0.77 on macOS Library Validation Entitlement access control

Summaryinfo

A vulnerability marked as critical has been reported in Microsoft Skype up to 8.59.0.77 on macOS. This vulnerability affects unknown code of the component Library Validation Entitlement. Performing a manipulation results in access control. This vulnerability is reported as CVE-2020-24003. The attack requires a local approach. No exploit exists.

Detailsinfo

A vulnerability was found in Microsoft Skype up to 8.59.0.77 on macOS (Unified Communication Software). It has been classified as problematic. This affects an unknown code of the component Library Validation Entitlement. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-264. This is going to have an impact on confidentiality.

The weakness was disclosed 01/12/2021. The advisory is shared at hdwsec.fr. This vulnerability is uniquely identified as CVE-2020-24003. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 02/11/2021). MITRE ATT&CK project uses the attack technique T1068 for this issue.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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

Productinfo

Type

• Unified Communication Software

Vendor

• Microsoft

Name

• Skype

Version

• 8.59.0.0
• 8.59.0.1
• 8.59.0.2
• 8.59.0.3
• 8.59.0.4
• 8.59.0.5
• 8.59.0.6
• 8.59.0.7
• 8.59.0.8
• 8.59.0.9
• 8.59.0.10
• 8.59.0.11
• 8.59.0.12
• 8.59.0.13
• 8.59.0.14
• 8.59.0.15
• 8.59.0.16
• 8.59.0.17
• 8.59.0.18
• 8.59.0.19
• 8.59.0.20
• 8.59.0.21
• 8.59.0.22
• 8.59.0.23
• 8.59.0.24
• 8.59.0.25
• 8.59.0.26
• 8.59.0.27
• 8.59.0.28
• 8.59.0.29
• 8.59.0.30
• 8.59.0.31
• 8.59.0.32
• 8.59.0.33
• 8.59.0.34
• 8.59.0.35
• 8.59.0.36
• 8.59.0.37
• 8.59.0.38
• 8.59.0.39
• 8.59.0.40
• 8.59.0.41
• 8.59.0.42
• 8.59.0.43
• 8.59.0.44
• 8.59.0.45
• 8.59.0.46
• 8.59.0.47
• 8.59.0.48
• 8.59.0.49
• 8.59.0.50
• 8.59.0.51
• 8.59.0.52
• 8.59.0.53
• 8.59.0.54
• 8.59.0.55
• 8.59.0.56
• 8.59.0.57
• 8.59.0.58
• 8.59.0.59
• 8.59.0.60
• 8.59.0.61
• 8.59.0.62
• 8.59.0.63
• 8.59.0.64
• 8.59.0.65
• 8.59.0.66
• 8.59.0.67
• 8.59.0.68
• 8.59.0.69
• 8.59.0.70
• 8.59.0.71
• 8.59.0.72
• 8.59.0.73
• 8.59.0.74
• 8.59.0.75
• 8.59.0.76
• 8.59.0.77

License

• free

Website

• Vendor: https://www.microsoft.com/

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

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

Discussion