Attacker Value

Unknown

(0 users assessed)

Exploitability

Unknown

(0 users assessed)

User Interaction

Unknown

Privileges Required

Unknown

Attack Vector

Unknown

0

CVE-2017-15710

Disclosure Date: March 26, 2018 •

Description

In Apache httpd 2.0.23 to 2.0.65, 2.2.0 to 2.2.34, and 2.4.0 to 2.4.29, mod_authnz_ldap, if configured with AuthLDAPCharsetConfig, uses the Accept-Language header value to lookup the right charset encoding when verifying the user’s credentials. If the header value is not present in the charset conversion table, a fallback mechanism is used to truncate it to a two characters value to allow a quick retry (for example, ‘en-US’ is truncated to ‘en’). A header value of less than two characters forces an out of bound write of one NUL byte to a memory location that is not part of the string. In the worst case, quite unlikely, the process would crash which could be used as a Denial of Service attack. In the more likely case, this memory is already reserved for future use and the issue has no effect at all.

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CVSS V3 Severity and Metrics

Data provided by the National Vulnerability Database (NVD)

Base Score:

None

Impact Score:

Unknown

Exploitability Score:

Unknown

Vector:

Attack Vector (AV):

Unknown

Attack Complexity (AC):

Unknown

Privileges Required (PR):

Unknown

User Interaction (UI):

Unknown

Scope (S):

Unknown

Confidentiality (C):

Unknown

Integrity (I):

Unknown

Availability (A):

Unknown

Vendors

apache,
canonical,
debian,
netapp,
redhat

Products

References

Canonical

CVE-2017-15710 (https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-15710)

BID-103512 (http://www.securityfocus.com/bid/103512)

Advisory

USN-3627-1 (https://usn.ubuntu.com/3627-1)

DSA-4164 (https://www.debian.org/security/2018/dsa-4164)

https://security.netapp.com/advisory/ntap-20180601-0004

https://access.redhat.com/errata/RHSA-2018:3558

https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03909en_us

https://access.redhat.com/errata/RHSA-2019:0367

USN-3627-2 (https://usn.ubuntu.com/3627-2)

[oss-security] 20180323 CVE-2017-15710: Out of bound write in mod_authnz_ldap when using too small Accept-Language values (http://www.openwall.com/lists/oss-security/2018/03/24/8)

SECTRACK-1040569 (http://www.securitytracker.com/id/1040569)

https://httpd.apache.org/security/vulnerabilities_24.html

[debian-lts-announce] 20180530 [SECURITY] [DLA 1389-1] apache2 security update (https://lists.debian.org/debian-lts-announce/2018/05/msg00020.html)

https://access.redhat.com/errata/RHSA-2019:0366

USN-3937-2 (https://usn.ubuntu.com/3937-2)

[httpd-cvs] 20190815 svn commit: r1048743 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20190815 svn commit: r1048742 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E)

https://www.tenable.com/security/tns-2019-09

[httpd-cvs] 20200401 svn commit: r1058586 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20200401 svn commit: r1058587 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/vulnerabilities-httpd.xml security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234@%3Ccvs.httpd.apache.org%3E)

USN-3627-1 (https://usn.ubuntu.com/3627-1/)

https://security.netapp.com/advisory/ntap-20180601-0004/

USN-3627-2 (https://usn.ubuntu.com/3627-2/)

USN-3937-2 (https://usn.ubuntu.com/3937-2/)

[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ (https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20210330 svn commit: r1073143 [3/3] - in /websites/staging/httpd/trunk/content: ./ security/ (https://lists.apache.org/thread.html/r06f0d87ebb6d59ed8379633f36f72f5b1f79cadfda72ede0830b42cf@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20210330 svn commit: r1073140 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20210330 svn commit: r1888194 [10/13] - /httpd/site/trunk/content/security/json/ (https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20210330 svn commit: r1073139 [10/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ (https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ (https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20210330 svn commit: r1073149 [11/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ (https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be@%3Ccvs.httpd.apache.org%3E)

[httpd-cvs] 20210606 svn commit: r1075470 [4/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.html (https://lists.apache.org/thread.html/r76142b8c5119df2178be7c2dba88fde552eedeec37ea993dfce68d1d@%3Ccvs.httpd.apache.org%3E)

Rapid7

Technical Analysis