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CVE-2018-5738— Some versions of BIND can improperly permit recursive query service to unauthorized clients

Quick assessment

Affected
ISC BIND 9
Exploitation
High exploitation probability; assess promptly
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

BIND是一套开源的用于实现DNS协议的软件。 BIND中存在安全漏洞。攻击者可利用该漏洞访问递归查询服务。

AI Predicted 9.8 Difficulty: Trivial EPSS 11.16% · P96

Possible ATT&CK Techniques 1 AI

T1557 · Adversary-in-the-Middle
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I. Basic Information for CVE-2018-5738

Vulnerability Information
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Vulnerability Title
Some versions of BIND can improperly permit recursive query service to unauthorized clients
Source: CVE Program / CVE List V5
Vulnerability Description
Change #4777 (introduced in October 2017) introduced an unforeseen issue in releases which were issued after that date, affecting which clients are permitted to make recursive queries to a BIND nameserver. The intended (and documented) behavior is that if an operator has not specified a value for the "allow-recursion" setting, it SHOULD default to one of the following: none, if "recursion no;" is set in named.conf; a value inherited from the "allow-query-cache" or "allow-query" settings IF "recursion yes;" (the default for that setting) AND match lists are explicitly set for "allow-query-cache" or "allow-query" (see the BIND9 Administrative Reference Manual section 6.2 for more details); or the intended default of "allow-recursion {localhost; localnets;};" if "recursion yes;" is in effect and no values are explicitly set for "allow-query-cache" or "allow-query". However, because of the regression introduced by change #4777, it is possible when "recursion yes;" is in effect and no match list values are provided for "allow-query-cache" or "allow-query" for the setting of "allow-recursion" to inherit a setting of all hosts from the "allow-query" setting default, improperly permitting recursion to all clients. Affects BIND 9.9.12, 9.10.7, 9.11.3, 9.12.0->9.12.1-P2, the development release 9.13.0, and also releases 9.9.12-S1, 9.10.7-S1, 9.11.3-S1, and 9.11.3-S2 from BIND 9 Supported Preview Edition.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
BIND 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
BIND是一套开源的用于实现DNS协议的软件。 BIND中存在安全漏洞。攻击者可利用该漏洞访问递归查询服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ISC BIND 9 9.9.12, 9.10.7, 9.11.3, 9.12.0->9.12.1-P2, the development release 9.13.0, and also releases 9.9.12-S1, 9.10.7-S1, 9.11.3-S1, and 9.11.3-S2 from BIND 9 Supported Preview Edition. -

II. Public POCs for CVE-2018-5738

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III. Intelligence Information for CVE-2018-5738

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Vendor Advisories for CVE-2018-5738 (4)

Other References for CVE-2018-5738 (1)

Same Patch Batch · ISC · 2019-01-16 · 18 CVEs total

CVE-2017-3143 An error in TSIG authentication can permit unauthorized dynamic updates
CVE-2018-5741 Update policies krb5-subdomain and ms-subdomain do not enforce controls promised in their
CVE-2018-5740 A flaw in the "deny-answer-aliases" feature can cause an assertion failure in named
CVE-2018-5739 Failure to release memory may exhaust system resources
CVE-2018-5737 BIND 9.12's serve-stale implementation can cause an assertion failure in rbtdb.c or other
CVE-2018-5734 A malformed request can trigger an assertion failure in badcache.c
CVE-2018-5733 A malicious client can overflow a reference counter in ISC dhcpd
CVE-2017-3145 Improper fetch cleanup sequencing in the resolver can cause named to crash
CVE-2017-3144 Failure to properly clean up closed OMAPI connections can exhaust available sockets
CVE-2016-9778 An error handling certain queries using the nxdomain-redirect feature could cause a REQUIR
CVE-2017-3142 An error in TSIG authentication can permit unauthorized zone transfers
CVE-2017-3141 Windows service and uninstall paths are not quoted when BIND is installed
CVE-2017-3140 An error processing RPZ rules can cause named to loop endlessly after handling a query
CVE-2017-3138 named exits with a REQUIRE assertion failure if it receives a null command string on its c
CVE-2017-3137 A response packet can cause a resolver to terminate when processing an answer containing a
CVE-2017-3136 An error handling synthesized records could cause an assertion failure when using DNS64 wi
CVE-2017-3135 Combination of DNS64 and RPZ Can Lead to Crash

IV. Related Vulnerabilities

Same product: BIND 9
Same vendor: ISC

V. Comments for CVE-2018-5738

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