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ubuntucveUbuntu.comUB:CVE-2023-31038
HistoryMay 08, 2023 - 12:00 a.m.

CVE-2023-31038

2023-05-0800:00:00
ubuntu.com
ubuntu.com
9
log4cxx
odbc
sql injection
c++ framework
vulnerability
upgrade
configuration
user input
dbappender

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

48.2%

SQL injection in Log4cxx when using the ODBC appender to send log messages
to a database. No fields sent to the database were properly escaped for SQL
injection. This has been the case since at least version 0.9.0(released
2003-08-06) Note that Log4cxx is a C++ framework, so only C++ applications
are affected. Before version 1.1.0, the ODBC appender was automatically
part of Log4cxx if the library was found when compiling the library. As of
version 1.1.0, this must be both explicitly enabled in order to be compiled
in. Three preconditions must be met for this vulnerability to be possible:

  1. Log4cxx compiled with ODBC support(before version 1.1.0, this was
    auto-detected at compile time) 2. ODBCAppender enabled for logging messages
    to, generally done via a config file 3. User input is logged at some point.
    If your application does not have user input, it is unlikely to be
    affected. Users are recommended to upgrade to version 1.1.0 which properly
    binds the parameters to the SQL statement, or migrate to the new DBAppender
    class which supports an ODBC connection in addition to other databases.
    Note that this fix does require a configuration file update, as the old
    configuration files will not configure properly. An example is shown below,
    and more information may be found in the Log4cxx documentation on the
    ODBCAppender. Example of old configuration snippet: <appender
    name=“SqlODBCAppender” class=“ODBCAppender”> <param name=“sql”
    value=“INSERT INTO logs (message) VALUES (‘%m’)” /> … other params here
    … </appender> The migrated configuration snippet with new ColumnMapping
    parameters: <appender name=“SqlODBCAppender” class=“ODBCAppender”> <param
    name=“sql” value=“INSERT INTO logs (message) VALUES (?)” /> <param
    name=“ColumnMapping” value=“message”/> … other params here …
    </appender>

8.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

0.001 Low

EPSS

Percentile

48.2%