CVE-2015-3200
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a...
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- High
- Availability
- None
Exploit likelihood
What each source reports
NVD Score used
7.5
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
- Record
CVE-2015-3200- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - CVSS 2.0
- 5.0 Medium
AV:N/AC:L/Au:N/C:N/I:P/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
CVE List No score
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
- Record
CVE-2015-3200- Updated
- 2026-11-02
EUVDEUVD-2015-3266 No score
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
- Record
EUVD-2015-3266- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-fxx4-pv62-6956
7.5
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a...
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
- Record
GHSA-fxx4-pv62-6956- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Weakness
- CWE-74
- Updated
- 2026-11-02
OSV
7.5
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
- Record
CVE-2015-3200- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVDEBIAN-CVE-2015-3200
7.5
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
- Record
DEBIAN-CVE-2015-3200- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
Show 5 moreShow less
OSVUBUNTU-CVE-2015-3200
7.5
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character.
- Record
UBUNTU-CVE-2015-3200- CVSS 3.0
- 7.5 High
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Updated
- 2026-11-02
OSVMGASA-2015-0338 No score
Updated lighttpd packages fix CVE-2015-3200 & other bugs
Updated lighttpd packages fix security vulnerability:
mod_auth in lighttpd before 1.4.36 allows remote attackers to inject arbitrary log entries via a basic HTTP authentication string without a colon character, as demonstrated by a string containing a NULL and new line character (CVE-2015-3200).
The lighttpd package has been updated to version 1.4.37, fixing this issue and several other bugs.
In the Mageia 4 package, improvements have been made to the logrotate configuration and systemd service, allowing graceful reloading of configuration files and proper re-opening of log files (mga#15948, mga#15980).
- Record
MGASA-2015-0338- Updated
- 2026-11-02
OSVSUSE-SU-2017:0728-1 No score
Security update for lighttpd
This update for lighttpd fixes the following issues:
Security issues fixed:
- CVE-2016-1000212: don't allow requests to set the HTTP_PROXY variable. As *CGI apps might pick it up and use it for outgoing requests (bsc#990847).
- CVE-2015-3200: log injection via malformed base64 string in Authentication header (bsc#932286).
Bugfixes:
- added su directive to logrotate file as the directory is owned by lighttpd. (bsc#981347)
- fix out of bounds read in mod_scgi (debian#857255)
- Record
SUSE-SU-2017:0728-1- Updated
- 2026-11-02
OSVSUSE-SU-2017:0731-1 No score
Security update for lighttpd
This update for lighttpd fixes the following issues:
Security issues fixed:
- CVE-2016-1000212: Don't allow requests to set the HTTP_PROXY variable. As *CGI apps might pick it up and use it for outgoing requests. (bsc#990847)
- CVE-2015-3200: Log injection via malformed base64 string in Authentication header. (bsc#932286)
Bug fixes:
- Add su directive to logrotate file as the directory is owned by lighttpd. (bsc#981347)
- Fix out of bounds read in mod_scgi.
- Record
SUSE-SU-2017:0731-1- Updated
- 2026-11-02
OSVUSN-4775-1 No score
lighttpd vulnerabilities
It was discovered that Lighttpd did not properly sanitized the string used in basic HTTP authentication method. A remote attacker could use this to inject arbitrary log entries and maybe obtain sensitive information. This issue only affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2015-3200)
It was discovered that Lighttpd did not properly sanitized the string used in alias. A remote attacker could use this to access the content of the directory above the alias and obtain sensitive information. (CVE-2018-19052)
- Record
USN-4775-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
lighttpdDebian:12 |
before 1.4.37-1 | 1.4.37-1 |
lighttpdDebian:13 |
before 1.4.37-1 | 1.4.37-1 |
lighttpdDebian:14 |
before 1.4.37-1 | 1.4.37-1 |
lighttpdMageia:4 |
before 1.4.37-1.mga4 | 1.4.37-1.mga4 |
lighttpdMageia:5 |
before 1.4.37-1.mga5 | 1.4.37-1.mga5 |
lighttpdSUSE:Linux Enterprise High Availability Extension 12 SP1 |
before 1.4.35-3.1 | 1.4.35-3.1 |
lighttpdSUSE:Linux Enterprise High Availability Extension 12 SP2 |
before 1.4.35-3.1 | 1.4.35-3.1 |
lighttpdSUSE:Linux Enterprise Server for SAP Applications 12 |
before 1.4.35-3.1 | 1.4.35-3.1 |
lighttpdSUSE:Linux Enterprise Software Development Kit 11 SP4 |
before 1.4.20-2.58.1 | 1.4.20-2.58.1 |
lighttpdSUSE:Linux Enterprise High Availability Extension 11 SP4 |
before 1.4.20-2.58.1 | 1.4.20-2.58.1 |
Show 4 moreShow less
| Package | Affected | Fixed |
|---|---|---|
lighttpdSUSE:Linux Enterprise Server for SAP Applications 11 SP4 |
before 1.4.20-2.58.1 | 1.4.20-2.58.1 |
lighttpdUbuntu:Pro:14.04:LTS |
before 1.4.33-1+nmu2ubuntu2.1+esm1, plus listed versions 1.4.31-3ubuntu31.4.33-1ubuntu11.4.33-1+nmu2ubuntu11.4.33-1+nmu2ubuntu21.4.33-1+nmu2ubuntu2.1 |
1.4.33-1+nmu2ubuntu2.1+esm1 |
lighttpdUbuntu:Pro:16.04:LTS |
before 1.4.35-4ubuntu2.1+esm1, plus listed versions 1.4.35-4ubuntu11.4.35-4ubuntu21.4.35-4ubuntu2.1 |
1.4.35-4ubuntu2.1+esm1 |
lighttpdUbuntu:Pro:18.04:LTS |
before 1.4.45-1ubuntu3.18.04.1+esm1, plus listed versions 1.4.45-1ubuntu11.4.45-1ubuntu31.4.45-1ubuntu3+esm11.4.45-1ubuntu3.18.041.4.45-1ubuntu3.18.04+esm11.4.45-1ubuntu3.18.04.1 |
1.4.45-1ubuntu3.18.04.1+esm1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-3200 is a high vulnerability (CVSS 7.5) in Lighttpd, published June 9, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 9.91%, the 95th percentile. Fixed in lighttpd 1.4.37-1.
References
securityfocus.com/bid/74813
h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05247375
redmine.lighttpd.net/issues/2646
securitytracker.com/id/1032405
lists.fedoraproject.org/pipermail/package-announce/2015-August/163223.html
lists.fedoraproject.org/pipermail/package-announce/2015-August/163286.html
Show 23 moreShow less
jaanuskp.blogspot.com/2015/05/cve-2015-3200.html
oracle.com/technetwork/topics/security/bulletinoct2015-2511968.html
kc.mcafee.com/corporate/index?page=content&id=SB10310
nvd.nist.gov/vuln/detail/CVE-2015-3200
github.com/advisories/GHSA-fxx4-pv62-6956
security-tracker.debian.org/tracker/CVE-2015-3200
advisories.mageia.org/MGASA-2015-0338.html
bugs.mageia.org/show_bug.cgi?id=16555
lighttpd.net/2015/7/26/1.4.36
lighttpd.net/2015/8/30/1.4.37
bugs.mageia.org/show_bug.cgi?id=15948
bugs.mageia.org/show_bug.cgi?id=15980
suse.com/support/update/announcement/2017/suse-su-20170728-1
bugzilla.suse.com/932286
bugzilla.suse.com/981347
bugzilla.suse.com/990847
suse.com/security/cve/CVE-2015-3200
suse.com/security/cve/CVE-2016-1000212
suse.com/support/update/announcement/2017/suse-su-20170731-1
ubuntu.com/security/CVE-2015-3200
cve.org/CVERecord?id=CVE-2015-3200
ubuntu.com/security/notices/USN-4775-1
ubuntu.com/security/CVE-2018-19052