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veracodeVeracode Vulnerability DatabaseVERACODE:7113
HistoryJul 20, 2018 - 8:31 a.m.

TLS Session Resumption Client Certificate Bypass

2018-07-2008:31:52
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
10

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N

libcurl.so is vulnerable to TLS session resumption client certificate bypass attacks. The vulnerability exists in Curl_clone_ssl_config of lib/vtls/vtls.c where libcurl.so does not prevent the TLS session resumption if the client certificate has been replaced.

CPENameOperatorVersion
libcurl.sole4.3.0

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

AV:N/AC:L/Au:N/C:P/I:N/A:N