__________________________________________________________________
Squid Proxy Cache Security Update Advisory SQUID-2020:4
__________________________________________________________________
Advisory ID: SQUID-2020:4
Date: April 23, 2020
Summary: Multiple issues
in HTTP Digest authentication.
Affected versions: Squid 2.x -> 2.7.STABLE9
Squid 3.x -> 3.5.28
Squid 4.x -> 4.10
Squid 5.x -> 5.0.1
Fixed in version: Squid 4.11 and 5.0.2
__________________________________________________________________
/Advisories/SQUID-2020_4.txt
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-11945
__________________________________________________________________
Problem Description:
Due to an integer overflow bug Squid is vulnerable to credential
replay and remote code execution attacks against HTTP Digest
Authentication tokens.
__________________________________________________________________
Severity:
When memory pooling is used this problem allows a remote client
to replay a sniffed Digest Authentication nonce to gain access
to resources that are otherwise forbidden.
When memory pooling is disabled this problem allows a remote
client to perform remote code execution through the free'd nonce
credentials.
__________________________________________________________________
Updated Packages:
This bug is fixed by Squid versions 4.11 and 5.0.2.
In addition, patches addressing this problem for the stable
releases can be found in our patch archives:
Squid 4:
If you are using a prepackaged version of Squid then please refer
to the package vendor for availability information on updated
packages.
__________________________________________________________________
Determining if your version is vulnerable:
All Squid-2.x up to and including 2.4.STABLE7 are not vulnerable.
All Squid-2.5 up to and including 2.7.STABLE9 are vulnerable.
All Squid-2.x up to and including 2.7.STABLE9 configured with
"auth_param digest" are vulnerable.
All Squid-2.x up to and including 2.7.STABLE9 configured without
"auth_param digest" are not vulnerable.
All Squid-3.x up to and including 3.5.28 built with
--disable-auth are not vulnerable.
All Squid-3.2 up to and including 3.5.28 built with
--disable-auth-digest are not vulnerable.
All Squid-3.x up to and including 3.5.28 configured with
"auth_param digest" are vulnerable.
All Squid-3.x up to and including 3.5.28 configured without
"auth_param digest" are not vulnerable.
All Squid-4.x up to and including 4.10 built with
--disable-auth are not vulnerable.
All Squid-4.x up to and including 4.10 built with
--disable-auth-digest are not vulnerable.
All Squid-4.x up to and including 4.10 configured with
"auth_param digest" are vulnerable.
All Squid-4.x up to and including 4.10 configured without
"auth_param digest" are not vulnerable.
Squid-5.0.1 built with --disable-auth-digest is not vulnerable.
Squid-5.0.1 configured with "auth_param digest" are vulnerable.
Squid-5.0.1 configured without "auth_param digest" are not
vulnerable.
__________________________________________________________________
Workaround:
Either,
Remove all "auth_param digest" lines from squid.conf
Or,
Build Squid with --disable-auth-digest
Or,
Build Squid with --disable-auth
__________________________________________________________________
Contact details for the Squid project:
For installation / upgrade support on binary packaged versions
of Squid: Your first point of contact should be your binary
package vendor.
If your install and build Squid from the original Squid sources
then the squid-users@lists.squid-cache.org mailing list is your
primary support point. For subscription details see
.
For reporting of non-security bugs in the latest STABLE release
the squid bugzilla database should be used
.
For reporting of security sensitive bugs send an email to the
squid-bugs@lists.squid-cache.org mailing list. It's a closed
list (though anyone can post) and security related bug reports
are treated in confidence until the impact has been established.
__________________________________________________________________
Credits:
This vulnerability was discovered by Cl茅ment Berthaux and
Florian Guilbert of Synacktiv.
Fixed by Maxime Desbrus of Synacktiv.
__________________________________________________________________
Revision history:
2019-11-20 13:39:07 UTC Initial Report
2020-04-02 11:16:45 UTC Patches Released
2020-04-20 20:08:14 UTC CVE Assignment
2020-04-23 08:00:00 UTC Advisory Released
__________________________________________________________________
END
387 Captain Parks, however, agreed with Mr. Everdail, who trusted him absolutely—if Sandy did not—that it would be wise not to give any person who had been on the yacht during its crossing any chance to get away. Felipa stood leaning listlessly against the post of the ramada, watching them. After a time she went into the adobe and came out with a pair of field-glasses, following the course of the command as it wound along among the foot-hills. The day dragged dully along. She was uneasy about her husband, her nerves were shaken with the coffee and quinine, and she was filled,[Pg 76] moreover, with a vague restlessness. She would have sent for her horse and gone out even in the clouds of dust and the wind like a hot oven, but Landor had forbidden her to leave the post. Death in the tip of a poisoned arrow, at the point of a yucca lance, or from a more merciful bullet of lead, might lurk behind any mesquite bush or gray rock. Chapter 9 "Very well," answered the Deacon a little stiffly, for he was on his guard against cordial strangers. "Deed he was," answered Si. "He and his fathers before him run' this whole neck o' woods accordin' to the big Injun taste, and give the Army o' the United States all they wanted to do. Used to knock all the other Injuns around here about like ten-pins. The Rosses were bosses from the word go." Little Pete had an idea. He wriggled in between, snatched the glasses, and made off with them. Dara looked away. "I have my song," she said. HoME日韩一级特黄高清免费自拍
ENTER NUMBET 0017
wh361.com.cn
www.xhchain.com.cn
www.bentu7.net.cn
www.zhifu4.com.cn
ganze0.com.cn
www.ashapz.org.cn
215269.org.cn
huire3.net.cn
117webfind.com.cn
www.32webfind.com.cn