Back to the CVE list
CVE-2021-22946Proof of concept (PoC) published · CISASuited to automated attack · CISA

Vulnerability in N/a Https://github.com/curl/curl

CVSS score

7.5

EPSS probability

%4.5

Risk score

0.3

Published

5 y ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Official patch verified

Etkilenen ürün ve sürüm için yayımlanan güvenlik güncellemesini uygulayın.

Impact on My Inventory

Only the personal products you have added to your account are assessed; an organisation's inventory does not appear here.

Checking session…

Vulnerability description

DayBreach CVE AI Research

CVE-2021-22946 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.

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.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2021-22946 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1n/ahttps://github.com/curl/curl View
2haxxcurl View
3debiandebian linux View
4debiandebian linux View
5debiandebian linux View
6fedoraprojectfedora View
7fedoraprojectfedora View
8netappcloud backup View
9netappclustered data ontap View
10netapponcommand insight View
11netapponcommand workflow automation View
12netappsnapcenter View
13netapph300s firmware View
14netapph300s View
15netapph500s firmware View
16netapph500s View
17netapph700s firmware View
18netapph700s View
19netapph300e firmware View
20netapph300e View
21netapph500e firmware View
22netapph500e View
23netapph700e firmware View
24netapph700e View
25netapph410s firmware View
26netapph410s View
27netappsolidfire baseboard management controller firmware View
28netappsolidfire baseboard management controller View
29oraclecommunications cloud native core binding support function View
30oraclecommunications cloud native core network function cloud native environment View
31oraclecommunications cloud native core network repository function View
32oraclecommunications cloud native core network repository function View
33oraclecommunications cloud native core network slice selection function View
34oraclecommunications cloud native core service communication proxy View
35oraclemysql server View
36oraclemysql server View
37oraclepeoplesoft enterprise peopletools View
38oraclepeoplesoft enterprise peopletools View
39oraclepeoplesoft enterprise peopletools View
40applemacos View
41siemenssinec infrastructure network services View
42oraclecommerce guided search View
43oraclecommunications cloud native core binding support function View
44oraclecommunications cloud native core console View
45oraclecommunications cloud native core network repository function View
46oraclecommunications cloud native core network repository function View
47oraclecommunications cloud native core security edge protection proxy View
48splunkuniversal forwarder View
49splunkuniversal forwarder View
50splunkuniversal forwarder View
Total affected vendors: 9|Products: 50

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.5CVSS V3_1HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NCVE ADP
7.5CVSS V31HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:NNVD
5.0CVSS V2—AV:N/AC:L/Au:N/C:P/I:N/A:NNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

5 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
nvd

NVD tarafından Patch olarak etiketlenmiş referans

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2021-22946 is associated with the following CWEs:

CWE-325: Common Weakness Enumeration Entry CWE-325CWE-319: Common Weakness Enumeration Entry CWE-319

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2021-22946 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://hackerone.com/reports/1334111vendor-advisory[debian-lts-announce] 20210930 [SECURITY] [DLA 2773-1] curl security updatevendor-advisoryFEDORA-2021-fc96a3a749vendor-advisoryhttps://www.oracle.com/security-alerts/cpuoct2021.htmlvendor-advisoryFEDORA-2021-1d24845e93vendor-advisoryhttps://www.oracle.com/security-alerts/cpujan2022.htmlvendor-advisoryhttps://security.netapp.com/advisory/ntap-20211029-0003/vendor-advisoryhttps://security.netapp.com/advisory/ntap-20220121-0008/vendor-advisory20220314 APPLE-SA-2022-03-14-4 macOS Monterey 12.3vendor-advisoryhttps://www.oracle.com/security-alerts/cpuapr2022.htmlvendor-advisory

CVSS Vector Radar Chart

7.5 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityNone

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)None

Yama doğrulandı

5 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

N
n/a logo
n/a
H
haxx logo
haxx
D
debian logo
debian
F
fedoraproject logo
fedoraproject
N
netapp logo
netapp
O
oracle logo
oracle

Weakness Type (CWE & CAPEC)

CWE-325 CWE-319

Similar Vulnerabilities

Get this vulnerability through the API

Affected products, version ranges, exploitation status and patch information in a single request, with a free key.

Get a free keyDocumentation
curl -H "x-api-key: $DAYBREACH_API_KEY" \
  "https://api.daybreach.dev/api/v1/intel/cves/CVE-2021-22946"