CVE-2023-20168
Vulnerability from cvelistv5
Published
2023-08-23 18:07
Modified
2024-08-02 09:05
Severity ?
EPSS score ?
Summary
A vulnerability in TACACS+ and RADIUS remote authentication for Cisco NX-OS Software could allow an unauthenticated, local attacker to cause an affected device to unexpectedly reload. This vulnerability is due to incorrect input validation when processing an authentication attempt if the directed request option is enabled for TACACS+ or RADIUS. An attacker could exploit this vulnerability by entering a crafted string at the login prompt of an affected device. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a denial of service (DoS) condition.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| ▼ | Cisco | Cisco NX-OS Software |
Version: 4.2(1)SV1(4) Version: 4.2(1)SV1(4a) Version: 4.2(1)SV1(4b) Version: 4.2(1)SV1(5.1) Version: 4.2(1)SV1(5.1a) Version: 4.2(1)SV1(5.2) Version: 4.2(1)SV1(5.2b) Version: 4.2(1)SV2(1.1) Version: 4.2(1)SV2(1.1a) Version: 4.2(1)SV2(2.1) Version: 4.2(1)SV2(2.1a) Version: 4.2(1)SV2(2.2) Version: 4.2(1)SV2(2.3) Version: 5.2(1)SM1(5.1) Version: 5.2(1)SM1(5.2) Version: 5.2(1)SM1(5.2a) Version: 5.2(1)SM1(5.2b) Version: 5.2(1)SM1(5.2c) Version: 5.2(1)SM3(1.1) Version: 5.2(1)SM3(1.1a) Version: 5.2(1)SM3(1.1b) Version: 5.2(1)SM3(1.1c) Version: 5.2(1)SM3(2.1) Version: 5.2(1)SV3(1.4) Version: 5.2(1)SV3(1.1) Version: 5.2(1)SV3(1.3) Version: 5.2(1)SV3(1.5a) Version: 5.2(1)SV3(1.5b) Version: 5.2(1)SV3(1.6) Version: 5.2(1)SV3(1.10) Version: 5.2(1)SV3(1.15) Version: 5.2(1)SV3(2.1) Version: 5.2(1)SV3(2.5) Version: 5.2(1)SV3(2.8) Version: 5.2(1)SV3(3.1) Version: 5.2(1)SV3(1.2) Version: 5.2(1)SV3(1.4b) Version: 5.2(1)SV3(3.15) Version: 5.2(1)SV3(4.1) Version: 5.2(1)SV3(4.1a) Version: 5.2(1)SV3(4.1b) Version: 5.2(1)SV3(4.1c) Version: 6.0(2)A3(1) Version: 6.0(2)A3(2) Version: 6.0(2)A3(4) Version: 6.0(2)A4(1) Version: 6.0(2)A4(2) Version: 6.0(2)A4(3) Version: 6.0(2)A4(4) Version: 6.0(2)A4(5) Version: 6.0(2)A4(6) Version: 6.0(2)A6(1) Version: 6.0(2)A6(1a) Version: 6.0(2)A6(2) Version: 6.0(2)A6(2a) Version: 6.0(2)A6(3) Version: 6.0(2)A6(3a) Version: 6.0(2)A6(4) Version: 6.0(2)A6(4a) Version: 6.0(2)A6(5) Version: 6.0(2)A6(5a) Version: 6.0(2)A6(5b) Version: 6.0(2)A6(6) Version: 6.0(2)A6(7) Version: 6.0(2)A6(8) Version: 6.0(2)A7(1) Version: 6.0(2)A7(1a) Version: 6.0(2)A7(2) Version: 6.0(2)A7(2a) Version: 6.0(2)A8(1) Version: 6.0(2)A8(2) Version: 6.0(2)A8(3) Version: 6.0(2)A8(4) Version: 6.0(2)A8(4a) Version: 6.0(2)A8(5) Version: 6.0(2)A8(6) Version: 6.0(2)A8(7) Version: 6.0(2)A8(7a) Version: 6.0(2)A8(7b) Version: 6.0(2)A8(8) Version: 6.0(2)A8(9) Version: 6.0(2)A8(10a) Version: 6.0(2)A8(10) Version: 6.0(2)A8(11) Version: 6.0(2)A8(11a) Version: 6.0(2)A8(11b) Version: 6.0(2)U2(1) Version: 6.0(2)U2(2) Version: 6.0(2)U2(3) Version: 6.0(2)U2(4) Version: 6.0(2)U2(5) Version: 6.0(2)U2(6) Version: 6.0(2)U3(1) Version: 6.0(2)U3(2) Version: 6.0(2)U3(3) Version: 6.0(2)U3(4) Version: 6.0(2)U3(5) Version: 6.0(2)U3(6) Version: 6.0(2)U3(7) Version: 6.0(2)U3(8) Version: 6.0(2)U3(9) Version: 6.0(2)U4(1) Version: 6.0(2)U4(2) Version: 6.0(2)U4(3) Version: 6.0(2)U4(4) Version: 6.0(2)U5(1) Version: 6.0(2)U5(2) Version: 6.0(2)U5(3) Version: 6.0(2)U5(4) Version: 6.0(2)U6(1) Version: 6.0(2)U6(2) Version: 6.0(2)U6(3) Version: 6.0(2)U6(4) Version: 6.0(2)U6(5) Version: 6.0(2)U6(6) Version: 6.0(2)U6(7) Version: 6.0(2)U6(8) Version: 6.0(2)U6(1a) Version: 6.0(2)U6(2a) Version: 6.0(2)U6(3a) Version: 6.0(2)U6(4a) Version: 6.0(2)U6(5a) Version: 6.0(2)U6(5b) Version: 6.0(2)U6(5c) Version: 6.0(2)U6(9) Version: 6.0(2)U6(10) Version: 6.2(2) Version: 6.2(2a) Version: 6.2(6) Version: 6.2(6b) Version: 6.2(8) Version: 6.2(8a) Version: 6.2(8b) Version: 6.2(10) Version: 6.2(12) Version: 6.2(18) Version: 6.2(16) Version: 6.2(14) Version: 6.2(6a) Version: 6.2(20) Version: 6.2(1) Version: 6.2(3) Version: 6.2(5) Version: 6.2(5a) Version: 6.2(5b) Version: 6.2(7) Version: 6.2(9) Version: 6.2(9a) Version: 6.2(9b) Version: 6.2(9c) Version: 6.2(11) Version: 6.2(11b) Version: 6.2(11c) Version: 6.2(11d) Version: 6.2(11e) Version: 6.2(13) Version: 6.2(13a) Version: 6.2(13b) Version: 6.2(15) Version: 6.2(17) Version: 6.2(19) Version: 6.2(21) Version: 6.2(23) Version: 6.2(20a) Version: 6.2(25) Version: 6.2(22) Version: 6.2(27) Version: 6.2(29) Version: 6.2(24) Version: 6.2(31) Version: 6.2(24a) Version: 6.2(33) Version: 7.0(3)F1(1) Version: 7.0(3)F2(1) Version: 7.0(3)F2(2) Version: 7.0(3)F3(1) Version: 7.0(3)F3(2) Version: 7.0(3)F3(3) Version: 7.0(3)F3(3a) Version: 7.0(3)F3(4) Version: 7.0(3)F3(3c) Version: 7.0(3)F3(5) Version: 7.0(3)I2(2a) Version: 7.0(3)I2(2b) Version: 7.0(3)I2(2c) Version: 7.0(3)I2(2d) Version: 7.0(3)I2(2e) Version: 7.0(3)I2(3) Version: 7.0(3)I2(4) Version: 7.0(3)I2(5) Version: 7.0(3)I2(1) Version: 7.0(3)I2(1a) Version: 7.0(3)I2(2) Version: 7.0(3)I3(1) Version: 7.0(3)I4(1) Version: 7.0(3)I4(2) Version: 7.0(3)I4(3) Version: 7.0(3)I4(4) Version: 7.0(3)I4(5) Version: 7.0(3)I4(6) Version: 7.0(3)I4(7) Version: 7.0(3)I4(8) Version: 7.0(3)I4(8a) Version: 7.0(3)I4(8b) Version: 7.0(3)I4(8z) Version: 7.0(3)I4(9) Version: 7.0(3)I5(1) Version: 7.0(3)I5(2) Version: 7.0(3)I6(1) Version: 7.0(3)I6(2) Version: 7.0(3)I7(1) Version: 7.0(3)I7(2) Version: 7.0(3)I7(3) Version: 7.0(3)I7(4) Version: 7.0(3)I7(5) Version: 7.0(3)I7(5a) Version: 7.0(3)I7(6) Version: 7.0(3)I7(7) Version: 7.0(3)I7(8) Version: 7.0(3)I7(9) Version: 7.0(3)I7(10) Version: 7.1(0)N1(1a) Version: 7.1(0)N1(1b) Version: 7.1(0)N1(1) Version: 7.1(1)N1(1) Version: 7.1(2)N1(1) Version: 7.1(3)N1(1) Version: 7.1(3)N1(2) Version: 7.1(4)N1(1) Version: 7.1(5)N1(1) Version: 7.1(5)N1(1b) Version: 7.2(0)D1(1) Version: 7.2(1)D1(1) Version: 7.2(2)D1(2) Version: 7.2(2)D1(1) Version: 7.3(0)D1(1) Version: 7.3(0)DX(1) Version: 7.3(0)DY(1) Version: 7.3(0)N1(1) Version: 7.3(1)D1(1) Version: 7.3(1)DY(1) Version: 7.3(1)N1(1) Version: 7.3(2)D1(1) Version: 7.3(2)D1(2) Version: 7.3(2)D1(3) Version: 7.3(2)D1(3a) Version: 7.3(2)N1(1) Version: 7.3(3)N1(1) Version: 8.0(1) Version: 8.1(1) Version: 8.1(2) Version: 8.1(2a) Version: 8.1(1a) Version: 8.1(1b) Version: 8.2(1) Version: 8.2(2) Version: 8.2(3) Version: 8.2(4) Version: 8.2(5) Version: 8.2(6) Version: 8.2(7) Version: 8.2(7a) Version: 8.2(8) Version: 8.2(9) Version: 8.3(1) Version: 8.3(2) Version: 9.2(1) Version: 9.2(2) Version: 9.2(2t) Version: 9.2(3) Version: 9.2(4) Version: 9.2(2v) Version: 9.2(1a) Version: 7.3(4)N1(1) Version: 7.3(3)D1(1) Version: 7.3(4)D1(1) Version: 7.3(5)N1(1) Version: 5.2(1)SK3(1.1) Version: 5.2(1)SK3(2.1) Version: 5.2(1)SK3(2.2) Version: 5.2(1)SK3(2.2b) Version: 5.2(1)SK3(2.1a) Version: 5.2(1)SV5(1.1) Version: 5.2(1)SV5(1.2) Version: 5.2(1)SV5(1.3) Version: 5.2(1)SV5(1.3a) Version: 5.2(1)SV5(1.3b) Version: 5.2(1)SV5(1.3c) Version: 8.4(1) Version: 8.4(1a) Version: 8.4(2) Version: 8.4(2a) Version: 8.4(3) Version: 8.4(2b) Version: 8.4(4) Version: 8.4(2c) Version: 8.4(4a) Version: 8.4(5) Version: 8.4(2d) Version: 8.4(6) Version: 8.4(2e) Version: 8.4(6a) Version: 8.4(7) Version: 8.4(2f) Version: 9.3(1) Version: 9.3(2) Version: 9.3(3) Version: 9.3(4) Version: 9.3(5) Version: 9.3(6) Version: 9.3(7) Version: 9.3(7a) Version: 9.3(8) Version: 9.3(9) Version: 9.3(10) Version: 9.3(11) Version: 7.3(6)N1(1) Version: 7.3(5)D1(1) Version: 7.3(7)N1(1) Version: 7.3(7)N1(1a) Version: 7.3(7)N1(1b) Version: 7.3(6)D1(1) Version: 7.3(8)N1(1) Version: 7.3(7)D1(1) Version: 7.3(9)N1(1) Version: 10.1(1) Version: 10.1(2) Version: 10.1(2t) Version: 8.5(1) Version: 7.3(10)N1(1) Version: 7.3(8)D1(1) Version: 10.2(1) Version: 10.2(1q) Version: 10.2(2) Version: 10.2(3) Version: 10.2(3t) Version: 10.2(4) Version: 10.2(5) Version: 7.3(9)D1(1) Version: 7.3(11)N1(1) Version: 7.3(12)N1(1) Version: 10.3(1) Version: 10.3(2) Version: 7.3(13)N1(1) |
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|
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{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-02T09:05:35.038Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "cisco-sa-nxos-remoteauth-dos-XB6pv74m",
"tags": [
"x_transferred"
],
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-remoteauth-dos-XB6pv74m"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
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"vendor": "Cisco",
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],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability in TACACS+ and RADIUS remote authentication for Cisco NX-OS Software could allow an unauthenticated, local attacker to cause an affected device to unexpectedly reload. This vulnerability is due to incorrect input validation when processing an authentication attempt if the directed request option is enabled for TACACS+ or RADIUS. An attacker could exploit this vulnerability by entering a crafted string at the login prompt of an affected device. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a denial of service (DoS) condition. "
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
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{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 7.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
"version": "3.1"
},
"format": "cvssV3_1"
}
],
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{
"descriptions": [
{
"cweId": "CWE-120",
"description": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"lang": "en",
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}
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"dateUpdated": "2024-01-25T16:57:48.712Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
},
"references": [
{
"name": "cisco-sa-nxos-remoteauth-dos-XB6pv74m",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-remoteauth-dos-XB6pv74m"
}
],
"source": {
"advisory": "cisco-sa-nxos-remoteauth-dos-XB6pv74m",
"defects": [
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"CSCwe72670",
"CSCwe72648",
"CSCwe72673",
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],
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},
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"assignerShortName": "cisco",
"cveId": "CVE-2023-20168",
"datePublished": "2023-08-23T18:07:53.428Z",
"dateReserved": "2022-10-27T18:47:50.362Z",
"dateUpdated": "2024-08-02T09:05:35.038Z",
"state": "PUBLISHED"
},
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"meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2023-20168\",\"sourceIdentifier\":\"ykramarz@cisco.com\",\"published\":\"2023-08-23T19:15:07.777\",\"lastModified\":\"2024-11-21T07:40:43.873\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability in TACACS+ and RADIUS remote authentication for Cisco NX-OS Software could allow an unauthenticated, local attacker to cause an affected device to unexpectedly reload. This vulnerability is due to incorrect input validation when processing an authentication attempt if the directed request option is enabled for TACACS+ or RADIUS. An attacker could exploit this vulnerability by entering a crafted string at the login prompt of an affected device. 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Advisory\"]},{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nxos-remoteauth-dos-XB6pv74m\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.