National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-0053 Detail

Current Description

Insufficient validation of environment variables in the telnet client supplied in Junos OS can lead to stack-based buffer overflows, which can be exploited to bypass veriexec restrictions on Junos OS. A stack-based overflow is present in the handling of environment variables when connecting via the telnet client to remote telnet servers. This issue only affects the telnet client ? accessible from the CLI or shell ? in Junos OS. Inbound telnet services are not affected by this issue. This issue affects: Juniper Networks Junos OS: 12.3 versions prior to 12.3R12-S13; 12.3X48 versions prior to 12.3X48-D80; 14.1X53 versions prior to 14.1X53-D130, 14.1X53-D49; 15.1 versions prior to 15.1F6-S12, 15.1R7-S4; 15.1X49 versions prior to 15.1X49-D170; 15.1X53 versions prior to 15.1X53-D237, 15.1X53-D496, 15.1X53-D591, 15.1X53-D69; 16.1 versions prior to 16.1R3-S11, 16.1R7-S4; 16.2 versions prior to 16.2R2-S9; 17.1 versions prior to 17.1R3; 17.2 versions prior to 17.2R1-S8, 17.2R2-S7, 17.2R3-S1; 17.3 versions prior to 17.3R3-S4; 17.4 versions prior to 17.4R1-S6, 17.4R2-S3, 17.4R3; 18.1 versions prior to 18.1R2-S4, 18.1R3-S3; 18.2 versions prior to 18.2R1-S5, 18.2R2-S2, 18.2R3; 18.2X75 versions prior to 18.2X75-D40; 18.3 versions prior to 18.3R1-S3, 18.3R2; 18.4 versions prior to 18.4R1-S2, 18.4R2.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.8 HIGH
Vector: AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H (V3.0 legend)
Impact Score: 5.9
Exploitability Score: 1.8


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

CVSS v2.0 Severity and Metrics:

Base Score: 4.6 MEDIUM
Vector: (AV:L/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 3.9


Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/153746/FreeBSD-Security-Advisory-FreeBSD-SA-19-12.telnet.html
https://kb.juniper.net/JSA10947 Vendor Advisory
https://seclists.org/bugtraq/2019/Jul/45 Third Party Advisory
https://security.FreeBSD.org/advisories/FreeBSD-SA-19:12.telnet.asc Third Party Advisory
https://www.exploit-db.com/exploits/45982 Exploit Third Party Advisory VDB Entry

Technical Details

Vulnerability Type (View All)

  • Improper Restriction of Operations within the Bounds of a Memory Buffer (CWE-119)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:juniper:junos:12.3:-:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:12.3:r1:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r11:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r12:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r13:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r2:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r3:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r4:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r5:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r6:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r7:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r8:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3:r9:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3r12:*:*:*:*:*:*:*
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Configuration 2 ( hide )
 cpe:2.3:o:juniper:junos:12.3x48:d10:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d15:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d25:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d30:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d35:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d40:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d45:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d50:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d55:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d60:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d65:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d70:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:12.3x48:d75:*:*:*:*:*:*
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Configuration 3 ( hide )
 cpe:2.3:o:juniper:junos:14.1x53:-:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d10:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d15:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d16:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d25:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d26:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d27:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d30:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d35:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d40:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:14.1x53:d45:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:14.1x53:d48:*:*:*:*:*:*
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Configuration 4 ( hide )
 cpe:2.3:o:juniper:junos:15.1:-:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:a1:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f1:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f2:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f2-s1:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f2-s2:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f2-s3:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f2-s4:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f3:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f4:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f5:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f6:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:f6-s3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1:r1:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1:r2:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1:r3:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1:r4:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:r4-s9:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:r5:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:r6:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1:r6-s6:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:r7-s1:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:r7-s2:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1:r7-s3:*:*:*:*:*:*
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Configuration 5 ( hide )
 cpe:2.3:o:juniper:junos:15.1x49:-:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d10:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d100:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d110:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d120:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d130:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d140:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d150:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d160:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d20:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d30:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d35:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d40:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d45:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d50:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d55:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d60:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d65:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x49:d70:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d75:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d80:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x49:d90:*:*:*:*:*:*
     Show Matching CPE(s)

Configuration 6 ( hide )
 cpe:2.3:o:juniper:junos:15.1x53:-:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d20:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d21:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d210:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d230:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d231:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d232:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d233:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d234:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d235:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:juniper:junos:15.1x53:d236:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d25:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d30:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d32:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d33:*:*:*:*:*:*
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 cpe:2.3:o:juniper:junos:15.1x53:d34:*:*:*:*:*:*
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Configuration 7 ( hide )

Configuration 8 ( hide )

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Configuration 17 ( hide )

Showing 100 of 192 CPEs, view all CPEs here.

Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-0053
NVD Published Date:
07/11/2019
NVD Last Modified:
07/27/2019