CVE-2023-27533
A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.99%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability in input validation exists in curl <8.0 during communication using the TELNET protocol may allow an attacker to pass on maliciously crafted user name and "telnet options" during server negotiation. The lack of proper input scrubbing allows an attacker to send content or perform option negotiation without the application's intent. This vulnerability could be exploited if an application allows user input, thereby enabling attackers to execute arbitrary code on the system.
- CVSS 3.1
- 8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 1.99% probability · 80th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-75, CWE-74
- Affected
- haxx/curl · fedoraproject/fedora · netapp/active iq unified manager · netapp/clustered data ontap · netapp/h300s firmware · netapp/h500s firmware · netapp/h700s firmware · netapp/h410s firmware · splunk/universal forwarder
- Source
- support@hackerone.com
References
- https://hackerone.com/reports/1891474Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00025.htmlMailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202310-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230420-0011/Third Party Advisory
- https://hackerone.com/reports/1891474Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2023/04/msg00025.htmlMailing List
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/Mailing List, Third Party Advisory
- https://security.gentoo.org/glsa/202310-12Third Party Advisory
- https://security.netapp.com/advisory/ntap-20230420-0011/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.