CVE-2021-22946
mediumPriorität · verfolgen · 32OT-Risiko · erhöhtEPSS 0.045 · 92. PerzentilDEEURUUSEPSS · bewertet 2026-10-27
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.
Behebungen
Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.
Ein Hersteller-Fix ist verfügbar.
- BehobenRUGGEDCOM ROX MX5000siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX MX5000REsiemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1400siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1500siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1501siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1510siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1511siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1512siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1524siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1536siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX5000siemens_psirt
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenSINEC INSsiemens_psirt
Update to V1.0.1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109806100/ - BehobenSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)siemens_psirt
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)siemens_psirt
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)siemens_psirt
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)siemens_psirt
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)siemens_psirt
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - Behobenphoenix_contact_psirt
**Update to Firmware Release 2022.0.3 LTS or higher:** - AXC F 2152 (2404267) [Download](http://www.phoenixcontact.net/qr/2404267/firmware) - AXC F 1152 (1151412) [Download](http://www.phoenixcontact.net/qr/1151412/firmware) - AXC F 3152 (1069208) Not yet released **Update to PLCnext Engineer Release 2022.0.1 LTS or higher.**
- BehobenSINEC INScisa_csaf_ot
Update to V1.0.1.1 or later version
https://support.industry.siemens.com/cs/ww/en/view/109806100/ - BehobenRUGGEDCOM ROX MX5000cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX MX5000REcisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1400cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1500cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1501cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1510cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1511cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1512cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1524cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX1536cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenRUGGEDCOM ROX RX5000cisa_csaf_ot
Update to V2.16.0 or later version
https://support.industry.siemens.com/cs/ww/en/view/109821187/ - BehobenSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)cisa_csaf_ot
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)cisa_csaf_ot
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)cisa_csaf_ot
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)cisa_csaf_ot
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - BehobenSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)cisa_csaf_ot
Update to V3.1.5 or later version
https://support.industry.siemens.com/cs/ww/en/view/109478459/ - Mitigationphoenix_contact_psirt
Phoenix Contact recommends operating network-capable devices in closed networks or protected with a suitable firewall. For detailed information on our recommendations for measures to protect network-capable devices, please refer to our application note: Measures to protect network-capable devices with Ethernet connection
- MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AB0)cisa_csaf_ot
Only build and run applications from trusted sources.
- MitigationSIMATIC S7-1500 CPU 1518-4 PN/DP MFP (6ES7518-4AX00-1AC0)cisa_csaf_ot
Only build and run applications from trusted sources.
- MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AB0)cisa_csaf_ot
Only build and run applications from trusted sources.
- MitigationSIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (6ES7518-4FX00-1AC0)cisa_csaf_ot
Only build and run applications from trusted sources.
- MitigationSIPLUS S7-1500 CPU 1518-4 PN/DP MFP (6AG1518-4AX00-4AC0)cisa_csaf_ot
Only build and run applications from trusted sources.
cvss
Technischer Schweregrad, 0–10. Eine Zeile je Quelle.
Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen⚠ Quellen uneinig · medium–high · 5–8.2
SSVC
Eine Handlungsentscheidung — aus Ausnutzung und Auswirkung.
schwächen
Die CWE-Schwächeklassen, zu denen dies gehört.
betroffene Produkte (114)
Betroffene Produkte und Versionsbereiche.
Advisories (16)
Hersteller- und Ökosystem-Meldungen dazu.
- SSA-146325SSA-146325: Multiple Vulnerabilities in RUGGEDCOM ROX before V2.162023-07-11csaf · siemens_psirtDE
Devices based on RUGGEDCOM ROX before V2.16 contain multiple high severity vulnerabilities, including the third-party vulnerabilities: CVE-2022-24903, CVE-2022-2068, CVE-2021-22946, CVE-2022-22576, CVE-2022-27781, CVE-2022-27782, CVE-2022-32207, CVE-2022-1292. Siemens has released updates for the affected products and recommends to update to the latest versions.
- SSA-389290SSA-389290: Third-Party Component Vulnerabilities in SINEC INS2022-03-08csaf · siemens_psirtDE
71 vulnerabilities in third-party components as Node.js, cURL, SQLite, CivetWeb and DNS(ISC BIND) could allow an attacker to interfere with the affected product in various ways. Siemens has released an update for SINEC INS and recommends to update to the latest versions.
- SSA-398330SSA-398330: Vulnerabilities in the additional GNU/Linux subsystem of the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.52023-12-12csaf · siemens_psirtDE
Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP >= V3.1.0 and < V3.1.5 are no longer maintained and there won't be any update to the CVE list anymore. Please update to the latest version. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 (https://cert-portal.siemens.com/productcert/html/ssb-439005.html).
- VDE-2022-010PHOENIX CONTACT: Multiple Linux component vulnerabilities fixed in latest AXC F x152 LTS release2022-04-12csaf · phoenix_contact_psirtDE
PLCnext Control AXC F x152 is certified according to IEC 62443-4-1 and IEC 62443-4-2. This certification requires that all third-party components used in the firmware are regularly checked for known vulnerabilities. Firmware components in version 2021.06 had already been updated. For the 2022.0 LTS version more firmware components have been updated implicitly fixing the vulnerabilities listed. The vulnerabilities listed above have not been individually verified in terms of actual impact and/or limitations in combination with the affected products listed. The current LTS release 2022.0 LTS contains updates of integrated third-party libraries, SDKs and other third-party software to address these issues nevertheless. UPDATE A (April 4th, 2022): Added RFC 4072 (Art. No. 1051328) and fixed affected version of AXC F 3152
- WID-SEC-W-2022-0676Juniper Junos Space: Mehrere SchwachstellenDeutsch2022-07-13csaf · cert_bundDE
Ein entfernter, anonymer, authentisierter oder lokaler Angreifer kann mehrere Schwachstellen in Juniper Junos Space ausnutzen, um einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Daten zu manipulieren oder zu verändern, seine Privilegien zu erweitern und Sicherheitsmaßnahmen zu umgehen.
- WID-SEC-W-2022-0875cURL: Mehrere SchwachstellenDeutsch2021-09-14csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um einen Denial of Service Angriff durchzuführen oder die Kryptographie zu umgehen.
- WID-SEC-W-2022-1056Apple macOS: Mehrere SchwachstellenDeutsch2022-03-14csaf · cert_bundDE
Ein entfernter anonymer, authentisierter, lokaler oder physischer Angreifer kann mehrere Schwachstellen in Apple macOS ausnutzen, , um seine Privilegien zu erweitern, vertrauliche Informationen offenzulegen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, einen Spoofing-Angriff durchzuführen und beliebigen Code auszuführen.
- WID-SEC-W-2022-1335Xerox FreeFlow Print Server: Mehrere SchwachstellenDeutsch2022-09-07csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Xerox FreeFlow Print Server ausnutzen, um die Vertraulichkeit, Verfügbarkeit und Integrität des Systems zu gefährden.
- WID-SEC-W-2022-1461IBM Spectrum Protect: Mehrere SchwachstellenDeutsch2022-09-18csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in IBM Spectrum Protect ausnutzen, um seine Privilegien zu erweitern, beliebigen Programmcode mit Administratorrechten auszuführen, Informationen offenzulegen, Dateien zu manipulieren, einen Cross-Site-Scripting-Angriff durchzuführen, einen Denial of Service Zustand herbeizuführen oder Sicherheitsvorkehrungen zu umgehen.
- WID-SEC-W-2023-1350Splunk Splunk Enterprise: Mehrere Schwachstellen in Komponenten von DrittanbieternDeutsch2023-06-01csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise in diversen Komponenten von Drittanbietern ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.
- WID-SEC-W-2023-2229Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2023-08-30csaf · cert_bundDE
Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, einen 'Denial of Service'-Zustand zu verursachen, seine Privilegien zu erweitern und weitere, nicht spezifizierte Auswirkungen zu verursachen.
- WID-SEC-W-2026-0180Dell Data Protection Advisor: Mehrere SchwachstellenDeutsch2026-01-20csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Dell Data Protection Advisor ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu erzeugen, Sicherheitsmaßnahmen zu umgehen und nicht näher spezifizierte Angriffe zu starten.
- ICSA-22-069-09Siemens SINEC INS2022-03-08icsa · cisa_csaf_otUS
71 vulnerabilities in third-party components as Node.js, cURL, SQLite, CivetWeb and DNS(ISC BIND) could allow an attacker to interfere with the affected product in various ways. Siemens has released an update for SINEC INS and recommends to update to the latest versions.
- ICSA-23-194-01Siemens RUGGEDCOM ROX2023-07-11icsa · cisa_csaf_otUS
Devices based on RUGGEDCOM ROX before V2.16 contain multiple high severity vulnerabilities, including the third-party vulnerabilities: CVE-2022-24903, CVE-2022-2068, CVE-2021-22946, CVE-2022-22576, CVE-2022-27781, CVE-2022-27782, CVE-2022-32207, CVE-2022-1292. Siemens has released updates for the affected products and recommends to update to the latest versions.
- ICSA-23-348-10Siemens SIMATIC S7-15002023-12-12icsa · cisa_csaf_otUS
Multiple vulnerabilities have been identified in the additional GNU/Linux subsystem of the firmware version >= V3.1.0 and < V3.1.5 for the SIMATIC S7-1500 CPU 1518(F)-4 PN/DP MFP (incl. SIPLUS variant). These GNU/Linux vulnerabilities have been externally identified. Siemens has released new versions for the affected products and recommends to update to the latest versions. Note: This SSA advises vulnerabilities for firmware version V3.1 only; for versions < V3.1 refer to Siemens Security Bulletin SSB-439005 ( https://cert-portal.siemens.com/productcert/html/ssb-439005.html).
- CURL-CVE-2021-22946Protocol downgrade required TLS bypassed2021-09-15vendor · osvUS
A user can tell curl 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` with libcurl). 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 **without TLS** contrary to the instructions and expectations, exposing possibly sensitive data in clear text over the network.
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Referenzen (105)
Externe Belege — Patches, Meldungen, Analysen.
- http://seclists.org/fulldisclosure/2022/Mar/29cnnvd
- https://access.redhat.com/security/cve/cve-2021-22946cnnvd
- https://cert-portal.siemens.com/productcert/pdf/ssa-389290.pdfcnnvd
- https://curl.se/docs/CVE-2021-22946.htmlPatchcnnvd
- https://hackerone.com/reports/1334111cnnvd
- https://lists.debian.org/debian-lts-announce/2021/09/msg00022.htmlcnnvd
- https://lists.debian.org/debian-lts-announce/2022/08/msg00017.htmlcnnvd
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/APOAK4X73EJTAPTSVT7IRVDMUWVXNWGD/cnnvd
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