CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
---|---|---|
7.0 | $0-$5k | 0.00 |
A vulnerability classified as critical has been found in cURL and libcURL up to 7.75.0 (Network Utility Software). Affected is an unknown function of the component TLS 1.3 Handshake Handler. The manipulation with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on confidentiality, integrity, and availability.
The weakness was released 04/02/2021. The advisory is shared for download at hackerone.com. This vulnerability is traded as CVE-2021-22890. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1587.003.
Upgrading to version 7.76.0 eliminates this vulnerability. The upgrade is hosted for download at curl.se. Applying a patch is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.
Product
Type
Name
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
License
CPE 2.3
CPE 2.2
CVSSv4
VulDB CVSS-B Score: 🔍VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv3
VulDB Meta Base Score: 7.3VulDB Meta Temp Score: 7.0
VulDB Base Score: 7.3
VulDB Temp Score: 7.0
VulDB Vector: 🔍
VulDB Reliability: 🔍
CVSSv2
AV | AC | Au | C | I | A |
---|---|---|---|---|---|
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
💳 | 💳 | 💳 | 💳 | 💳 | 💳 |
Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
---|---|---|---|---|---|
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
unlock | unlock | unlock | unlock | unlock | unlock |
VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍
Exploiting
Class: Certificate validationCWE: CWE-295 / CWE-287
ATT&CK: T1587.003
Local: No
Remote: Yes
Availability: 🔍
Status: Not defined
EPSS Score: 🔍
EPSS Percentile: 🔍
Price Prediction: 🔍
Current Price Estimation: 🔍
0-Day | unlock | unlock | unlock | unlock |
---|---|---|---|---|
Today | unlock | unlock | unlock | unlock |
Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: UpgradeStatus: 🔍
0-Day Time: 🔍
Upgrade: cURL/libcURL 7.76.0
Patch: github.com
Timeline
01/06/2021 🔍04/02/2021 🔍
04/02/2021 🔍
04/07/2021 🔍
Sources
Advisory: hackerone.comStatus: Confirmed
Confirmation: 🔍
CVE: CVE-2021-22890 (🔍)
Entry
Created: 04/02/2021 08:27Updated: 04/07/2021 21:18
Changes: 04/02/2021 08:27 (41), 04/07/2021 21:18 (5)
Complete: 🔍
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