Vulnerability Details : CVE-2021-22925

curl supports the `-t` command line option, known as `CURLOPT_TELNETOPTIONS`in libcurl. This rarely used option is used to send variable=content pairs toTELNET servers.Due to flaw in the option parser for sending `NEW_ENV` variables, libcurlcould be made to pass on uninitialized data from a stack based buffer to theserver. Therefore potentially revealing sensitive internal information to theserver using a clear-text network protocol.This could happen because curl did not call and use sscanf() correctly whenparsing the string provided by the application.

Vulnerability category: Information leak

Published 2021-08-05 21:15:11

Updated 2023-01-05 18:20:29

Source HackerOne

View at NVD, CVE.org

Exploit prediction scoring system (EPSS) score for CVE-2021-22925

Probability of exploitation activity in the next 30 days: 0.18%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 54 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2021-22925

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	nvd@nist.gov
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	3.9	1.4	nvd@nist.gov
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: None

CWE ids for CVE-2021-22925

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Assigned by: support@hackerone.com (Secondary)
CWE-908 Use of Uninitialized Resource

The product uses or accesses a resource that has not been initialized.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2021-22925

https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/

[SECURITY] Fedora 33 Update: curl-7.71.1-10.fc33 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://security.gentoo.org/glsa/202212-01

curl: Multiple Vulnerabilities (GLSA 202212-01) — Gentoo security
Third Party Advisory

CVEs referencing this url
https://www.oracle.com/security-alerts/cpujan2022.html

Oracle Critical Patch Update Advisory - January 2022
Patch;Third Party Advisory

CVEs referencing this url
https://security.netapp.com/advisory/ntap-20210902-0003/

August 2021 cURL/libcURL Vulnerabilities in NetApp Products | NetApp Product Security
Third Party Advisory

CVEs referencing this url
https://support.apple.com/kb/HT212805

About the security content of Security Update 2021-005 Catalina - Apple Support
Third Party Advisory

CVEs referencing this url
http://seclists.org/fulldisclosure/2021/Sep/40

Full Disclosure: APPLE-SA-2021-09-20-8 Additional information for APPLE-SA-2021-09-13-4 Security Update 2021-005 Catalina
Mailing List;Third Party Advisory

CVEs referencing this url
https://www.oracle.com/security-alerts/cpuoct2021.html

Oracle Critical Patch Update Advisory - October 2021
Patch;Third Party Advisory

CVEs referencing this url
https://support.apple.com/kb/HT212804

About the security content of macOS Big Sur 11.6 - Apple Support
Third Party Advisory

CVEs referencing this url
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf

Third Party Advisory

CVEs referencing this url
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf

Patch;Third Party Advisory

CVEs referencing this url
http://seclists.org/fulldisclosure/2021/Sep/39

Full Disclosure: APPLE-SA-2021-09-20-7 Additional information for APPLE-SA-2021-09-13-3 macOS Big Sur 11.6
Mailing List;Third Party Advisory

CVEs referencing this url
https://hackerone.com/reports/1223882

#1223882 CVE-2021-22925: TELNET stack contents disclosure again
Exploit;Issue Tracking;Patch;Third Party Advisory

Products affected by CVE-2021-22925

Apple » Mac Os X » Version: 10.15.7
cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
Matching versions
Apple » Mac Os X » Version: 10.15.7 Update Security Update 2021-001
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
Matching versions
Apple » Mac Os X » Version: 10.15.7 Update Security Update 2021-002
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
Matching versions
Apple » Mac Os X » Version: 10.15.7 Update Security Update 2021-003
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
Matching versions
Apple » Mac Os X » Version: 10.15.7 Update Security Update 2021-004
cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.0
cpe:2.3:o:apple:macos:11.0:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.0.1
cpe:2.3:o:apple:macos:11.0.1:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.1
cpe:2.3:o:apple:macos:11.1:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.1.0
cpe:2.3:o:apple:macos:11.1.0:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.2
cpe:2.3:o:apple:macos:11.2:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.2.1
cpe:2.3:o:apple:macos:11.2.1:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.3
cpe:2.3:o:apple:macos:11.3:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.3.1
cpe:2.3:o:apple:macos:11.3.1:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.4
cpe:2.3:o:apple:macos:11.4:*:*:*:*:*:*:*
Matching versions
Apple » Macos » Version: 11.5
cpe:2.3:o:apple:macos:11.5:*:*:*:*:*:*:*
Matching versions
Oracle » Peoplesoft Enterprise Peopletools » Version: 8.57
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
Matching versions
Oracle » Peoplesoft Enterprise Peopletools » Version: 8.58
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
Matching versions
Oracle » Peoplesoft Enterprise Peopletools » Version: 8.59
cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
Matching versions
Oracle » Mysql Server
Versions from including (>=) 5.7.0 and up to, including, (<=) 5.7.35
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Matching versions
Oracle » Mysql Server
Versions from including (>=) 8.0.0 and up to, including, (<=) 8.0.26
cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
Matching versions
Siemens » Sinema Remote Connect Server
Versions before (<) 3.1
cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*
Matching versions
Siemens » Sinec Infrastructure Network Services
Versions before (<) 1.0.1.1
cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 33
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
Matching versions
Netapp » Clustered Data Ontap » Version: N/A
cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
Matching versions
Netapp » Cloud Backup » Version: N/A
cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
Matching versions
Netapp » Hci Management Node » Version: N/A
cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
Matching versions
Netapp » Solidfire » Version: N/A
cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
Matching versions
Netapp » H300s Firmware » Version: N/A
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H300s » Version: N/A
Netapp » H500s Firmware » Version: N/A
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H500s » Version: N/A
Netapp » H700s Firmware » Version: N/A
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H700s » Version: N/A
Netapp » H300e Firmware » Version: N/A
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H300e » Version: N/A
Netapp » H500e Firmware » Version: N/A
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H500e » Version: N/A
Netapp » H700e Firmware » Version: N/A
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H700e » Version: N/A
Netapp » H410s Firmware » Version: N/A
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H410s » Version: N/A
Haxx » Curl
Versions from including (>=) 7.7 and before (<) 7.78.0
cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Matching versions