CVE-2015-2318
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
AI Score
Confidence
High
0.007 Low
EPSS
Percentile
79.8%
The TLS stack in Mono before 3.12.1 allows man-in-the-middle attackers to conduct message skipping attacks and consequently impersonate clients by leveraging missing handshake state validation, aka a “SMACK SKIP-TLS” issue.
Affected configurations
References
www.mono-project.com/news/2015/03/07/mono-tls-vulnerability/
www.openwall.com/lists/oss-security/2015/03/17/9
www.securityfocus.com/bid/73253
www.ubuntu.com/usn/USN-2547-1
bugzilla.redhat.com/show_bug.cgi?id=1202869
github.com/mono/mono/commit/1509226c41d74194c146deb173e752b8d3cdeec4
mitls.org/pages/attacks/SMACK#skip
www.debian.org/security/2015/dsa-3202
Related
6.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5 High
AI Score
Confidence
High
0.007 Low
EPSS
Percentile
79.8%