National Vulnerability Database

National Vulnerability Database

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    Vulnerabilities Detail

CVE-2019-6109 Detail

Current Description

An issue was discovered in OpenSSH 7.9. Due to missing character encoding in the progress display, a malicious server (or Man-in-The-Middle attacker) can employ crafted object names to manipulate the client output, e.g., by using ANSI control codes to hide additional files being transferred. This affects refresh_progress_meter() in progressmeter.c.

Source:  MITRE
Description Last Modified:  01/31/2019
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N (V3 legend)
Impact Score: 5.2
Exploitability Score: 1.6

Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): Required
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 4.0 MEDIUM
Vector: (AV:N/AC:H/Au:N/C:P/I:P/A:N) (V2 legend)
Impact Subscore: 4.9
Exploitability Subscore: 4.9

Access Vector (AV): Network
Access Complexity (AC): High
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): None
Additional Information:
Victim must voluntarily interact with attack mechanism
Allows unauthorized disclosure of information
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://cvsweb.openbsd.org/src/usr.bin/ssh/progressmeter.c Release Notes Vendor Advisory
https://cvsweb.openbsd.org/src/usr.bin/ssh/scp.c Release Notes Vendor Advisory
https://security.gentoo.org/glsa/201903-16
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://www.debian.org/security/2019/dsa-4387 Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Improper Access Control (CWE-284)

Change History

7 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-6109
NVD Published Date:
01/31/2019
NVD Last Modified:
03/21/2019