Product Affected

These issues affect Junos OS 12.1X46, 12.3, 12.3X48, 15.1, 15.1X49, 15.1X53, 16.1, 16.2, 17.1, 17.2, 17.3, 17.4, 18.1, 18.2, 18.3, 18.4.
High
7.5 (CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H)

Problem

Multiple J-Web vulnerabilities have been resolved in Juniper Networks Junos OS.

These issues affect:

Juniper Networks Junos OS

  • 12.1X46 versions prior to 12.1X46-D86 on SRX Series;
  • 12.3 versions prior to 12.3R12-S13 on EX Series;
  • 12.3X48 versions prior to 12.3X48-D80 on SRX Series;
  • 15.1 versions prior to 15.1R7-S4;
  • 15.1 versions prior to 15.1F6-S13 on MX Series, PTX Series and T Series;
  • 15.1X49 versions prior to 15.1X49-D171, 15.1X49-D180 on SRX Series;
  • 15.1X53 versions prior to 15.1X53-D591, 15.1X53-D69 on EX2300 Series, EX3400 Series, QFX10000 Series;
  • 16.1 versions prior to 16.1R7-S5;
  • 16.2 versions prior to 16.2R2-S9, 16.2R3;
  • 17.1 versions prior to 17.1R2-S12, 17.1R3;
  • 17.2 versions prior to 17.2R1-S8, 17.2R2-S7, 17.2R3-S1;
  • 17.3 versions prior to 17.3R2-S5, 17.3R3-S5;
  • 17.4 versions prior to 17.4R1-S7, 17.4R2-S6, 17.4R3;
  • 18.1 versions prior to 18.1R3-S4;
  • 18.2 versions prior to 18.2R1-S5, 18.2R2-S3, 18.2R3;
  • 18.3 versions prior to 18.3R1-S3, 18.3R2;
  • 18.4 versions prior to 18.4R1-S3, 18.4R2.

The following minimal configuration is necessary:

[system services web-management http]

or

[system services web-management https]

Juniper SIRT is not aware of any malicious exploitation of these vulnerabilities.

These issues were discovered during external security research.

Important security issues resolved include:

CVE CVSS Summary
CVE-2014-9708 5.0  (AV:N/AC:L/Au:N/C:N/I:N/A:P) Embedthis Appweb before 4.6.6 and 5.x before 5.2.1 allows remote attackers to cause a denial of service (NULL pointer dereference) via a Range header with an empty value, as demonstrated by "Range: x=,".
CVE-2018-15504 7.5 ( CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H ) An issue was discovered in Embedthis GoAhead before 4.0.1 and Appweb before 7.0.2. The server mishandles some HTTP request fields associated with time, which results in a NULL pointer dereference, as demonstrated by If-Modified-Since or If-Unmodified-Since with a month greater than 11.

Solution

The following software releases have been updated to resolve these specific issues: Junos OS: 12.1X46-D86, 12.3R12-S13, 12.3X48-D80, 15.1F6-S13, 15.1R7-S4, 15.1X49-D171, 15.1X49-D180, 15.1X53-D591, 15.1X53-D69, 16.1R7-S5, 16.2R2-S9, 16.2R3, 17.1R2-S12, 17.1R3, 17.2R1-S8, 17.2R2-S7, 17.2R3-S1, 17.3R2-S5, 17.3R3-S5, 17.4R1-S7, 17.4R2-S6, 17.4R3, 18.1R3-S4, 18.2R1-S5, 18.2R2-S3, 18.2R3, 18.3R1-S3, 18.3R2, 18.4R1-S3, 18.4R2, 19.1R1 and all subsequent releases.

These issues are being tracked as  1417434 .

Software releases or updates are available for download at https://support.juniper.net/support/downloads/
 

Workaround

There are no viable workarounds for these issues other than disabling J-Web.

To reduce the risk of exploitation of these issues, use access lists or firewall filters to limit access to only trusted administrative networks, hosts and users.

Severity Assessment

Information for how Juniper Networks uses CVSS can be found at KB 16446 [juniper.net] "Common Vulnerability Scoring System (CVSS) and Juniper's Security Advisories."

Modification History

2021-07-14: Initial Publication.

Related Information

Acknowledgements

The Juniper SIRT wishes to thank Rishabh Kumar Pandey with Wipro for responsibly reporting one of the issues resolved in this update.