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
Products affected by CVE-2021-22925
- cpe:2.3:o:apple:mac_os_x:10.15.7:-:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-001:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-002:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-003:*:*:*:*:*:*
- cpe:2.3:o:apple:mac_os_x:10.15.7:security_update_2021-004:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.0.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.1.0:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.2:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.2.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.3:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.3.1:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.4:*:*:*:*:*:*:*
- cpe:2.3:o:apple:macos:11.5:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.57:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.58:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:peoplesoft_enterprise_peopletools:8.59:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:oracle:mysql_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinema_remote_connect_server:*:*:*:*:*:*:*:*
- cpe:2.3:a:siemens:sinec_infrastructure_network_services:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:hci_management_node:-:*:*:*:*:*:*:*
- cpe:2.3:a:netapp:solidfire:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
- cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*
- cpe:2.3:a:splunk:universal_forwarder:*:*:*:*:*:*:*:*
- cpe:2.3:a:splunk:universal_forwarder:9.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-22925
0.55%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 77 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-22925
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
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
|
NIST |
CWE ids for CVE-2021-22925
-
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)
-
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-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FRUCW2UVNYUDZF72DQLFQR4PJEC6CF7V/
[SECURITY] Fedora 33 Update: curl-7.71.1-10.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202212-01
curl: Multiple Vulnerabilities (GLSA 202212-01) — Gentoo securityThird Party Advisory
-
https://www.oracle.com/security-alerts/cpujan2022.html
Oracle Critical Patch Update Advisory - January 2022Patch;Third Party Advisory
-
https://security.netapp.com/advisory/ntap-20210902-0003/
August 2021 cURL/libcURL Vulnerabilities in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://support.apple.com/kb/HT212805
About the security content of Security Update 2021-005 Catalina - Apple SupportThird Party Advisory
-
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 CatalinaMailing List;Third Party Advisory
-
https://www.oracle.com/security-alerts/cpuoct2021.html
Oracle Critical Patch Update Advisory - October 2021Patch;Third Party Advisory
-
https://support.apple.com/kb/HT212804
About the security content of macOS Big Sur 11.6 - Apple SupportThird Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-484086.pdf
Third Party Advisory
-
https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdf
Patch;Third Party Advisory
-
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 11.6Mailing List;Third Party Advisory
-
https://hackerone.com/reports/1223882
#1223882 CVE-2021-22925: TELNET stack contents disclosure againExploit;Issue Tracking;Patch;Third Party Advisory
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