cURL up to 7.78.0 TLS Policy inadequate encryption

Summaryinfo

A vulnerability has been found in cURL up to 7.78.0 and classified as problematic. This vulnerability affects unknown code of the component TLS Policy Handler. This manipulation causes inadequate encryption. This vulnerability is handled as CVE-2021-22946. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in cURL up to 7.78.0 (Network Utility Software). It has been declared as problematic. Affected by this vulnerability is an unknown part of the component TLS Policy Handler. The manipulation with an unknown input leads to a inadequate encryption vulnerability. The CWE definition for the vulnerability is CWE-326. The product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required. As an impact it is known to affect confidentiality.

The weakness was released 09/30/2021 as 1334111. It is possible to read the advisory at hackerone.com. This vulnerability is known as CVE-2021-22946 since 01/06/2021. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1600 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 236591 (Alibaba Cloud Linux 3 : 0078: curl (ALINUX3-SA-2021:0078)), which helps to determine the existence of the flaw in a target environment.

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

The vulnerability is also documented in the vulnerability database at Tenable (236591). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Network Utility Software

Name

• cURL

Version

• 7.0
• 7.1
• 7.2
• 7.3
• 7.4
• 7.5
• 7.6
• 7.7
• 7.8
• 7.9
• 7.10
• 7.11
• 7.12
• 7.13
• 7.14
• 7.15
• 7.16
• 7.17
• 7.18
• 7.19
• 7.20
• 7.21
• 7.22
• 7.23
• 7.24
• 7.25
• 7.26
• 7.27
• 7.28
• 7.29
• 7.30
• 7.31
• 7.32
• 7.33
• 7.34
• 7.35
• 7.36
• 7.37
• 7.38
• 7.39
• 7.40
• 7.41
• 7.42
• 7.43
• 7.44
• 7.45
• 7.46
• 7.47
• 7.48
• 7.49
• 7.50
• 7.51
• 7.52
• 7.53
• 7.54
• 7.55
• 7.56
• 7.57
• 7.58
• 7.59
• 7.60
• 7.61
• 7.62
• 7.63
• 7.64
• 7.65
• 7.66
• 7.67
• 7.68
• 7.69
• 7.70
• 7.71
• 7.72
• 7.73
• 7.74
• 7.75
• 7.76
• 7.77
• 7.78.0

License

• open-source

CPE 2.3info

• 🔍
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CPE 2.2info

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Exploitinginfo

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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