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CVE-2021-22946
AST
High

A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-re…

CVSS
7.5
High
EPSS
0.04
p89
Published
2021-01-01
Updated
2021-01-01
Description

A user can tell curl >= 7.20.0 and <= 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server (`--ssl-reqd` on the command line or`CURLOPT_USE_SSL` set to `CURLUSESSL_CONTROL` or `CURLUSESSL_ALL` withlibcurl). This requirement could be bypassed if the server would return a properly crafted but perfectly legitimate response.This flaw would then make curl silently continue its operations **withoutTLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.

Tags · CWE
Pre-auth
CWE-319
CWE-325
CAPEC-65
CAPEC-68
CAPEC-102
CAPEC-117
CAPEC-383
CAPEC-477
Affected products
Cloud_backupClustered_data_ontapOncommand_insightOncommand_workflow_automationSnapcenter
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Timeline
2021-01-01
Published
2021-01-01
Updated
CVSS 3.1 breakdown
Attack Vector
AV: N
Network (N)
Attack Complexity
AC: L
Low (L)
Privileges Required
PR: N
None (N)
User Interaction
UI: N
None (N)
Scope
S: U
Unchanged (U)
Confidentiality Impact
C: H
High (H)
Integrity Impact
I: N
None (N)
Availability Impact
A: N
None (N)
Exploit indicators
EPSS
0.042 · p89
Known exploited (KEV)
No
MITRE ATT&CK
Inferred via CAPEC
└ via CAPEC-65 · CWE-319
└ via CAPEC-383 · CWE-319
└ via CAPEC-68 · CWE-325
Known exploits — Сканер-ВС
No Сканер-ВС checks registered for this vulnerability yet.
Source databases
AST
DEB
CVE
RED
UBU
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