CVE-2020-15690 - Vulnerability Details - OpenCVE

Description

In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character.

Published: 2021-01-30

Score: 9.8 Critical

EPSS: 3.2% Low

KEV: No

Impact:

Action:

Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

n/a

n/a

affected

Version	Status	Constraints
`n/a`	affected	—

Configuration 1 [-]

cpe:2.3:a:nim-lang:nim:*:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories

Source	ID	Title
EUVD	EUVD-2020-7677	In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.0318.

Key SSVC decision points have not yet been added.

References

Link	Providers
http://www.openwall.com/lists/oss-security/2021/02/04/3
https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/
https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145
https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6
https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690

History

No history.

Subscriptions

Nim-lang Nim

MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2021-01-30T05:12:58.000Z

Updated: 2024-08-04T13:22:30.685Z

Reserved: 2020-07-13T00:00:00.000Z

Link: CVE-2020-15690

Vulnrichment

No data.

NVD

Status : Modified

Published: 2021-01-30T06:15:12.587

Modified: 2026-06-17T02:57:03.573

Link: CVE-2020-15690

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

CWE-74
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')

{"containers": {"cna": {"affected": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "descriptions": [{"lang": "en", "value": "In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character."}], "problemTypes": [{"descriptions": [{"description": "n/a", "lang": "en", "type": "text"}]}], "providerMetadata": {"dateUpdated": "2021-02-04T19:06:15.000Z", "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre"}, "references": [{"tags": ["x_refsource_MISC"], "url": "https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145"}, {"tags": ["x_refsource_CONFIRM"], "url": "https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6"}, {"tags": ["x_refsource_MISC"], "url": "https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/"}, {"tags": ["x_refsource_MISC"], "url": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690"}, {"name": "[oss-security] 20210204 [CVE-2020-15690] Nim - stdlib asyncftpd - Crlf Injection", "tags": ["mailing-list", "x_refsource_MLIST"], "url": "http://www.openwall.com/lists/oss-security/2021/02/04/3"}], "x_legacyV4Record": {"CVE_data_meta": {"ASSIGNER": "cve@mitre.org", "ID": "CVE-2020-15690", "STATE": "PUBLIC"}, "affects": {"vendor": {"vendor_data": [{"product": {"product_data": [{"product_name": "n/a", "version": {"version_data": [{"version_value": "n/a"}]}}]}, "vendor_name": "n/a"}]}}, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": {"description_data": [{"lang": "eng", "value": "In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "eng", "value": "n/a"}]}]}, "references": {"reference_data": [{"name": "https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145", "refsource": "MISC", "url": "https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145"}, {"name": "https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6", "refsource": "CONFIRM", "url": "https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6"}, {"name": "https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/", "refsource": "MISC", "url": "https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/"}, {"name": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690", "refsource": "MISC", "url": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690"}, {"name": "[oss-security] 20210204 [CVE-2020-15690] Nim - stdlib asyncftpd - Crlf Injection", "refsource": "MLIST", "url": "http://www.openwall.com/lists/oss-security/2021/02/04/3"}]}}}, "adp": [{"providerMetadata": {"orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-04T13:22:30.685Z"}, "title": "CVE Program Container", "references": [{"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145"}, {"tags": ["x_refsource_CONFIRM", "x_transferred"], "url": "https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/"}, {"tags": ["x_refsource_MISC", "x_transferred"], "url": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690"}, {"name": "[oss-security] 20210204 [CVE-2020-15690] Nim - stdlib asyncftpd - Crlf Injection", "tags": ["mailing-list", "x_refsource_MLIST", "x_transferred"], "url": "http://www.openwall.com/lists/oss-security/2021/02/04/3"}]}]}, "cveMetadata": {"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "cveId": "CVE-2020-15690", "datePublished": "2021-01-30T05:12:58.000Z", "dateReserved": "2020-07-13T00:00:00.000Z", "dateUpdated": "2024-08-04T13:22:30.685Z", "state": "PUBLISHED"}, "dataType": "CVE_RECORD", "dataVersion": "5.1"}

{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:nim-lang:nim:*:*:*:*:*:*:*:*", "matchCriteriaId": "8757BFFD-B9B9-4793-ABAA-B802CE5325ED", "versionEndExcluding": "1.2.6", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In Nim before 1.2.6, the standard library asyncftpclient lacks a check for whether a message contains a newline character."}, {"lang": "es", "value": "En Nim versiones anteriores a 1.2.6, la biblioteca est\u00e1ndar asyncftpclient carece de una comprobaci\u00f3n para saber si un mensaje contiene un car\u00e1cter newline"}], "id": "CVE-2020-15690", "lastModified": "2026-06-17T02:57:03.573", "metrics": {"cvssMetricV2": [{"acInsufInfo": false, "baseSeverity": "HIGH", "cvssData": {"accessComplexity": "LOW", "accessVector": "NETWORK", "authentication": "NONE", "availabilityImpact": "PARTIAL", "baseScore": 7.5, "confidentialityImpact": "PARTIAL", "integrityImpact": "PARTIAL", "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P", "version": "2.0"}, "exploitabilityScore": 10.0, "impactScore": 6.4, "obtainAllPrivilege": false, "obtainOtherPrivilege": false, "obtainUserPrivilege": false, "source": "nvd@nist.gov", "type": "Primary", "userInteractionRequired": false}], "cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.8, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 5.9, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2021-01-30T06:15:12.587", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/02/04/3"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145"}, {"source": "cve@mitre.org", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Mailing List", "Third Party Advisory"], "url": "http://www.openwall.com/lists/oss-security/2021/02/04/3"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://consensys.net/diligence/vulnerabilities/nim-asyncftpd-crlf-injection/"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/nim-lang/Nim/blob/dc5a40f3f39c6ea672e6dc6aca7f8118a69dda99/lib/pure/asyncftpclient.nim#L145"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Patch", "Third Party Advisory"], "url": "https://github.com/nim-lang/Nim/compare/v1.2.4...v1.2.6"}, {"source": "af854a3a-2127-422b-91ae-364da2661108", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/tintinweb/pub/tree/master/pocs/cve-2020-15690"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-74"}], "source": "nvd@nist.gov", "type": "Primary"}]}