Debian DSA-2322-1 : bugzilla - several vulnerabilities

High Nessus Plugin ID 56444

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

VPR Score: 5.9

Synopsis

The remote Debian host is missing a security-related update.

Description

Several vulnerabilities were discovered in Bugzilla, a web-based bug tracking system.

- CVE-2010-4572 By inserting particular strings into certain URLs, it was possible to inject both headers and content to any browser.

- CVE-2010-4567, CVE-2011-0048 Bugzilla has a 'URL' field that can contain several types of URL, including 'javascript:' and 'data:' URLs.
However, it does not make 'javascript:' and 'data:' URLs into clickable links, to protect against cross-site scripting attacks or other attacks. It was possible to bypass this protection by adding spaces into the URL in places that Bugzilla did not expect them. Also, 'javascript:' and'data:' links were always shown as clickable to logged-out users.

- CVE-2010-4568 It was possible for a user to gain unauthorized access to any Bugzilla account in a very short amount of time (short enough that the attack is highly effective).

- CVE-2011-0046 Various pages were vulnerable to Cross-Site Request Forgery attacks. Most of these issues are not as serious as previous CSRF vulnerabilities.

- CVE-2011-2978 When a user changes his email address, Bugzilla trusts a user-modifiable field for obtaining the current e-mail address to send a confirmation message to. If an attacker has access to the session of another user (for example, if that user left their browser window open in a public place), the attacker could alter this field to cause the email-change notification to go to their own address. This means that the user would not be notified that his account had its email address changed by the attacker.

- CVE-2011-2381 For flagmails only, attachment descriptions with a newline in them could lead to the injection of crafted headers in email notifications when an attachment flag is edited.

- CVE-2011-2379 Bugzilla uses an alternate host for attachments when viewing them in raw format to prevent cross-site scripting attacks. This alternate host is now also used when viewing patches in 'Raw Unified' mode because Internet Explorer 8 and older, and Safari before 5.0.6 do content sniffing, which could lead to the execution of malicious code.

- CVE-2011-2380, CVE-2011-2979 Normally, a group name is confidential and is only visible to members of the group, and to non-members if the group is used in bugs. By crafting the URL when creating or editing a bug, it was possible to guess if a group existed or not, even for groups which weren't used in bugs and so which were supposed to remain confidential.

Solution

Upgrade the bugzilla packages.

For the oldstable distribution (lenny), it has not been practical to backport patches to fix these bugs. Users of bugzilla on lenny are strongly advised to upgrade to the version in the squeeze distribution.

For the stable distribution (squeeze), these problems have been fixed in version 3.6.2.0-4.4.

See Also

https://security-tracker.debian.org/tracker/CVE-2010-4572

https://security-tracker.debian.org/tracker/CVE-2010-4567

https://security-tracker.debian.org/tracker/CVE-2011-0048

https://security-tracker.debian.org/tracker/CVE-2010-4568

https://security-tracker.debian.org/tracker/CVE-2011-0046

https://security-tracker.debian.org/tracker/CVE-2011-2978

https://security-tracker.debian.org/tracker/CVE-2011-2381

https://security-tracker.debian.org/tracker/CVE-2011-2379

https://security-tracker.debian.org/tracker/CVE-2011-2380

https://security-tracker.debian.org/tracker/CVE-2011-2979

https://packages.debian.org/source/squeeze/bugzilla

https://www.debian.org/security/2011/dsa-2322

Plugin Details

Severity: High

ID: 56444

File Name: debian_DSA-2322.nasl

Version: 1.13

Type: local

Agent: unix

Published: 2011/10/11

Updated: 2021/01/11

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 5.9

CVSS v2.0

Base Score: 7.5

Temporal Score: 5.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:bugzilla, cpe:/o:debian:debian_linux:6.0

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Available: false

Exploit Ease: No known exploits are available

Patch Publication Date: 2011/10/10

Vulnerability Publication Date: 2011/01/28

Reference Information

CVE: CVE-2010-4567, CVE-2010-4568, CVE-2010-4572, CVE-2011-0046, CVE-2011-0048, CVE-2011-2379, CVE-2011-2380, CVE-2011-2381, CVE-2011-2978, CVE-2011-2979

BID: 45982, 49042

DSA: 2322