CVE-2019-6111

CVSS V2 Medium 5.8 CVSS V3 Medium 5.9
Description
An issue was discovered in OpenSSH 7.9. Due to the scp implementation being derived from 1983 rcp, the server chooses which files/directories are sent to the client. However, the scp client only performs cursory validation of the object name returned (only directory traversal attacks are prevented). A malicious scp server (or Man-in-The-Middle attacker) can overwrite arbitrary files in the scp client target directory. If recursive operation (-r) is performed, the server can manipulate subdirectories as well (for example, to overwrite the .ssh/authorized_keys file).
Overview
  • CVE ID
  • CVE-2019-6111
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2019-01-31T18:29:00
  • Last Modified Date
  • 2023-03-24T18:12:40
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* 1 OR 7.9
cpe:2.3:a:winscp:winscp:*:*:*:*:*:*:*:* 1 OR 5.1.3
cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* 1 OR
cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 5.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 4.9
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • NONE
  • Base Score
  • 5.9
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.2
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00058.html
http://www.openwall.com/lists/oss-security/2019/04/18/1
http://www.openwall.com/lists/oss-security/2022/08/02/1
http://www.securityfocus.com/bid/106741 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2019:3702
https://bugzilla.redhat.com/show_bug.cgi?id=1677794 Exploit Issue Tracking Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c Release Notes
https://lists.apache.org/thread.html/c45d9bc90700354b58fb7455962873c44229841880dcb64842fa7d23@%3Cdev.mina.apache.org%3E
https://lists.apache.org/thread.html/c7301cab36a86825359e1b725fc40304d1df56dc6d107c1fe885148b@%3Cdev.mina.apache.org%3E
https://lists.apache.org/thread.html/d540139359de999b0f1c87d05b715be4d7d4bec771e1ae55153c5c7a@%3Cdev.mina.apache.org%3E
https://lists.apache.org/thread.html/e47597433b351d6e01a5d68d610b4ba195743def9730e49561e8cf3f@%3Cdev.mina.apache.org%3E
https://lists.debian.org/debian-lts-announce/2019/03/msg00030.html Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/W3YVQ2BPTOVDCFDVNC2GGF5P5ISFG37G/
https://security.gentoo.org/glsa/201903-16 Third Party Advisory
https://security.netapp.com/advisory/ntap-20190213-0001/ Third Party Advisory
https://sintonen.fi/advisories/scp-client-multiple-vulnerabilities.txt Third Party Advisory
https://usn.ubuntu.com/3885-1/ Third Party Advisory
https://usn.ubuntu.com/3885-2/ Third Party Advisory
https://www.debian.org/security/2019/dsa-4387 Third Party Advisory
https://www.exploit-db.com/exploits/46193/ Exploit Third Party Advisory VDB Entry
https://www.freebsd.org/security/advisories/FreeBSD-EN-19:10.scp.asc
https://www.oracle.com/technetwork/security-advisory/cpuoct2019-5072832.html
History
Created Old Value New Value Data Type Notes
2022-05-10 17:16:32 Added to TrackCVE
2022-12-03 17:00:51 2019-01-31T18:29Z 2019-01-31T18:29:00 CVE Published Date updated
2022-12-03 17:00:51 2022-08-02T15:15:08 CVE Modified Date updated
2022-12-03 17:00:51 Modified Vulnerability Status updated
2022-12-03 17:00:55 References updated
2022-12-13 13:12:33 2022-12-13T12:15:26 CVE Modified Date updated
2022-12-13 13:12:36 References updated
2022-12-23 18:09:09 Modified Undergoing Analysis Vulnerability Status updated
2022-12-23 19:08:56 Undergoing Analysis Modified Vulnerability Status updated
2023-01-20 16:08:22 Modified Undergoing Analysis Vulnerability Status updated
2023-03-27 14:09:27 2023-03-24T18:12:40 CVE Modified Date updated
2023-03-27 14:09:27 Undergoing Analysis Analyzed Vulnerability Status updated