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ID

VAR-202012-0270


CVE

CVE-2020-20277


TITLE

uftpd FTP  Path traversal vulnerability in server

Trust: 0.8

sources: JVNDB: JVNDB-2020-014586

DESCRIPTION

There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server versions 2.7 to 2.10 due to improper implementation of a chroot jail in common.c's compose_abspath function that can be abused to read or write to arbitrary files on the filesystem, leak process memory, or potentially lead to remote code execution. uftpd FTP A path traversal vulnerability exists in the server.Information is obtained, information is tampered with, and service is disrupted (DoS) It may be put into a state

Trust: 1.71

sources: NVD: CVE-2020-20277 // JVNDB: JVNDB-2020-014586 // VULMON: CVE-2020-20277

AFFECTED PRODUCTS

vendor:troglobitmodel:uftpdscope:gteversion:2.7

Trust: 1.0

vendor:troglobitmodel:uftpdscope:lteversion:2.10

Trust: 1.0

vendor:troglobitmodel:uftpdscope:eqversion: -

Trust: 0.8

vendor:troglobitmodel:uftpdscope:eqversion:2.7 to 2.10

Trust: 0.8

sources: JVNDB: JVNDB-2020-014586 // NVD: CVE-2020-20277

CVSS

SEVERITY

CVSSV2

CVSSV3

nvd@nist.gov: CVE-2020-20277
value: CRITICAL

Trust: 1.0

NVD: CVE-2020-20277
value: CRITICAL

Trust: 0.8

CNNVD: CNNVD-202012-1366
value: CRITICAL

Trust: 0.6

VULMON: CVE-2020-20277
value: HIGH

Trust: 0.1

nvd@nist.gov: CVE-2020-20277
severity: HIGH
baseScore: 7.5
vectorString: AV:N/AC:L/AU:N/C:P/I:P/A:P
accessVector: NETWORK
accessComplexity: LOW
authentication: NONE
confidentialityImpact: PARTIAL
integrityImpact: PARTIAL
availabilityImpact: PARTIAL
exploitabilityScore: 10.0
impactScore: 6.4
acInsufInfo: NONE
obtainAllPrivilege: NONE
obtainUserPrivilege: NONE
obtainOtherPrivilege: NONE
userInteractionRequired: NONE
version: 2.0

Trust: 1.9

nvd@nist.gov: CVE-2020-20277
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: 3.9
impactScore: 5.9
version: 3.1

Trust: 1.0

NVD: CVE-2020-20277
baseSeverity: CRITICAL
baseScore: 9.8
vectorString: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
attackVector: NETWORK
attackComplexity: LOW
privilegesRequired: NONE
userInteraction: NONE
scope: UNCHANGED
confidentialityImpact: HIGH
integrityImpact: HIGH
availabilityImpact: HIGH
exploitabilityScore: NONE
impactScore: NONE
version: 3.0

Trust: 0.8

sources: VULMON: CVE-2020-20277 // JVNDB: JVNDB-2020-014586 // CNNVD: CNNVD-202012-1366 // NVD: CVE-2020-20277

PROBLEMTYPE DATA

problemtype:CWE-22

Trust: 1.0

problemtype:Path traversal (CWE-22) [NVD Evaluation ]

Trust: 0.8

sources: JVNDB: JVNDB-2020-014586 // NVD: CVE-2020-20277

THREAT TYPE

remote

Trust: 0.6

sources: CNNVD: CNNVD-202012-1366

TYPE

path traversal

Trust: 0.6

sources: CNNVD: CNNVD-202012-1366

PATCH

title:FTP/TFTPurl:https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe

Trust: 0.8

title:uftpd Repair measures for path traversal vulnerabilitiesurl:http://www.cnnvd.org.cn/web/xxk/bdxqById.tag?id=137865

Trust: 0.6

sources: JVNDB: JVNDB-2020-014586 // CNNVD: CNNVD-202012-1366

EXTERNAL IDS

db:NVDid:CVE-2020-20277

Trust: 2.5

db:PACKETSTORMid:167908

Trust: 1.7

db:JVNDBid:JVNDB-2020-014586

Trust: 0.8

db:EXPLOIT-DBid:51000

Trust: 0.6

db:CXSECURITYid:WLB-2022080009

Trust: 0.6

db:CNNVDid:CNNVD-202012-1366

Trust: 0.6

db:VULMONid:CVE-2020-20277

Trust: 0.1

sources: VULMON: CVE-2020-20277 // JVNDB: JVNDB-2020-014586 // CNNVD: CNNVD-202012-1366 // NVD: CVE-2020-20277

REFERENCES

url:http://packetstormsecurity.com/files/167908/uftpd-2.10-directory-traversal.html

Trust: 2.4

url:https://arinerron.com/blog/posts/6

Trust: 1.7

url:https://github.com/troglobit/uftpd/commit/455b47d3756aed162d2d0ef7f40b549f3b5b30fe

Trust: 1.7

url:https://nvd.nist.gov/vuln/detail/cve-2020-20277

Trust: 1.4

url:https://www.exploit-db.com/exploits/51000

Trust: 0.6

url:https://cxsecurity.com/issue/wlb-2022080009

Trust: 0.6

url:https://cwe.mitre.org/data/definitions/22.html

Trust: 0.1

url:https://nvd.nist.gov

Trust: 0.1

sources: VULMON: CVE-2020-20277 // JVNDB: JVNDB-2020-014586 // CNNVD: CNNVD-202012-1366 // NVD: CVE-2020-20277

CREDITS

Aaron Esau

Trust: 0.6

sources: CNNVD: CNNVD-202012-1366

SOURCES

db:VULMONid:CVE-2020-20277
db:JVNDBid:JVNDB-2020-014586
db:CNNVDid:CNNVD-202012-1366
db:NVDid:CVE-2020-20277

LAST UPDATE DATE

2024-11-23T23:01:11.515000+00:00


SOURCES UPDATE DATE

db:VULMONid:CVE-2020-20277date:2022-08-02T00:00:00
db:JVNDBid:JVNDB-2020-014586date:2021-08-25T05:30:00
db:CNNVDid:CNNVD-202012-1366date:2022-08-03T00:00:00
db:NVDid:CVE-2020-20277date:2024-11-21T05:11:59.587

SOURCES RELEASE DATE

db:VULMONid:CVE-2020-20277date:2020-12-18T00:00:00
db:JVNDBid:JVNDB-2020-014586date:2021-08-25T00:00:00
db:CNNVDid:CNNVD-202012-1366date:2020-12-18T00:00:00
db:NVDid:CVE-2020-20277date:2020-12-18T19:15:14.110