7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.017 Low
EPSS
Percentile
86.3%
A vulnerability was found in a way libcurl uses NTLM-authenticated proxy
connections. Libcurl will reuse NTLM-authenticated proxy connections
without properly making sure that the connection was authenticated with
the same credentials as set for this transfer.
Since NTLM-based authentication is connection oriented instead of
request oriented as other HTTP based authentication, it is important
that only connections that have been authenticated with the correct
username + password are reused. This was done properly for server
connections already, but libcurl failed to do it properly for proxy
connections using NTLM, which might allow remote attackers to
authenticate as other users via a request.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
any | any | any | lib32-curl | < 7.47.0-1 | UNKNOWN |
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:L/Au:N/C:N/I:P/A:N
0.017 Low
EPSS
Percentile
86.3%