// For flags

CVE-2023-27533

curl: TELNET option IAC injection

Severity Score

8.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
Low
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2023-03-02 CVE Reserved
  • 2023-03-21 CVE Published
  • 2024-08-02 CVE Updated
  • 2024-08-02 First Exploit
  • 2024-11-04 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
  • CWE-75: Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Netapp
Search vendor "Netapp"
H300s Firmware
Search vendor "Netapp" for product "H300s Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H300s
Search vendor "Netapp" for product "H300s"
--
Safe
Netapp
Search vendor "Netapp"
H500s Firmware
Search vendor "Netapp" for product "H500s Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H500s
Search vendor "Netapp" for product "H500s"
--
Safe
Netapp
Search vendor "Netapp"
H700s Firmware
Search vendor "Netapp" for product "H700s Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H700s
Search vendor "Netapp" for product "H700s"
--
Safe
Netapp
Search vendor "Netapp"
H410s Firmware
Search vendor "Netapp" for product "H410s Firmware"
--
Affected
in Netapp
Search vendor "Netapp"
H410s
Search vendor "Netapp" for product "H410s"
--
Safe
Haxx
Search vendor "Haxx"
Curl
Search vendor "Haxx" for product "Curl"
>= 7.0.0 <= 7.881
Search vendor "Haxx" for product "Curl" and version " >= 7.0.0 <= 7.881"
-
Affected
Fedoraproject
Search vendor "Fedoraproject"
Fedora
Search vendor "Fedoraproject" for product "Fedora"
36
Search vendor "Fedoraproject" for product "Fedora" and version "36"
-
Affected
Netapp
Search vendor "Netapp"
Active Iq Unified Manager
Search vendor "Netapp" for product "Active Iq Unified Manager"
-vmware_vsphere
Affected
Netapp
Search vendor "Netapp"
Clustered Data Ontap
Search vendor "Netapp" for product "Clustered Data Ontap"
9.0
Search vendor "Netapp" for product "Clustered Data Ontap" and version "9.0"
-
Affected
Splunk
Search vendor "Splunk"
Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
>= 8.2.0 < 8.2.12
Search vendor "Splunk" for product "Universal Forwarder" and version " >= 8.2.0 < 8.2.12"
-
Affected
Splunk
Search vendor "Splunk"
Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
>= 9.0.0 < 9.0.6
Search vendor "Splunk" for product "Universal Forwarder" and version " >= 9.0.0 < 9.0.6"
-
Affected
Splunk
Search vendor "Splunk"
Universal Forwarder
Search vendor "Splunk" for product "Universal Forwarder"
9.1.0
Search vendor "Splunk" for product "Universal Forwarder" and version "9.1.0"
-
Affected