cURL Metalink cleartext transmission

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in cURL. The impacted element is an unknown function of the component Metalink Handler. The manipulation leads to cleartext transmission. This vulnerability is traded as CVE-2021-22923. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in cURL (Network Utility Software) (affected version unknown). This issue affects an unknown functionality of the component Metalink Handler. The manipulation with an unknown input leads to a cleartext transmission vulnerability. Using CWE to declare the problem leads to CWE-319. The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors. Impacted is confidentiality.

The weakness was shared 08/06/2021. The advisory is shared at hackerone.com. The identification of this vulnerability is CVE-2021-22923. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1040 for this issue.

The vulnerability scanner Nessus provides a plugin with the ID 236733 (Alibaba Cloud Linux 3 : 0070: curl (ALINUX3-SA-2021:0070)), 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 (236733). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.1
VulDB Meta Temp Score: 3.0

VulDB Base Score: 3.1
VulDB Temp Score: 3.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

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

Exploitinginfo

Class: Cleartext transmission
CWE: CWE-319 / CWE-310
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 236733
Nessus Name: Alibaba Cloud Linux 3 : 0070: curl (ALINUX3-SA-2021:0070)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/06/2021 🔍
08/06/2021 +211 days 🔍
08/06/2021 +0 days 🔍
05/16/2025 +1379 days 🔍

Sourcesinfo

Advisory: hackerone.com
Status: Not defined

CVE: CVE-2021-22923 (🔍)
GCVE (CVE): GCVE-0-2021-22923
GCVE (VulDB): GCVE-100-180209

Entryinfo

Created: 08/06/2021 08:20
Updated: 05/16/2025 13:43
Changes: 08/06/2021 08:20 (35), 08/10/2021 08:53 (2), 05/16/2025 13:43 (16)
Complete: 🔍
Cache ID: 216::103

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

Discussion

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